Faculty

Zhao,YongGang, Professor

Department of Physics, Tsinghua University

Beijing 100084, China

Phone:8610-62795197

Fax:86-10-62781604

ygzhao@tsinghua.edu.cn

Links:http://info.phys.tsinghua.edu.cn/zhao/

Education and Employment

Education:

BS Solid State Physics, Zhejiang University, 1985

Ph D Solid State Physics, Shanghai Institute of Metallurgy, Chinese Academy of Sciences, 1990

Employment:

Department of Physics, Tsinghua University, Professor (2000-); Associate Professor (1993-2000), Lecturer (1992-1993)

Center for Superconductivity Research, University of Maryland at College Park, USA, Visiting Scholar (2002.3-2002.9)

Center for Superconductivity Research, University of Maryland at College Park, USA, Visiting Scholar (1997.3-1999.9)

Institute of Physics, Chinese Academy of Sciences, Postdoctor (1990.5-1992.5)

Teaching

Undergraduate Courses

Solid State Physics II (64 periods, autumn term, 2000-2021, 32 periods (1999 autumn) )

Superconductor Physics (48 periods, autumn term, 1995, 1994)

X-ray diffraction (48 periods, 1994 spring)

Lectures on Frontiers of Physics (2 periods (magnetism), 2003 autumn)

Graduate courses

Superconductor Physics (2004-2022 Spring(every two years), 64 periods)

Progress in Modern Physics (2 periods (superconductivity), Spring term, 2000-2021)

Interests

Experimental research in condensed matter physics. Focusing on the following topics.

1. Fabrication and physical properties of magnetic oxide thin films and nanostructures; growth of thin films by pulsed laser deposition

·Manganites (CMR), multiferroic oxides and diluted magnetic oxides

·Fabrication of nanostructures, size effect and coupling among nanostructures

2. Heterostructures of oxide thin films and spintronics

3. Physics of strongly correlated systems and novel superconductors

Awards and Membership

Awards and Honours

Excellent mentor award,Tsinghua University,2012

Award of National Outstanding Young Investigator of NSFC, 2004

Excellent mentor award,Tsinghua University,2006

Award of Excellent Young Teacher, Ministry of Education of China, 2002

New Star Award for Academic Achievements, Tsinghua University, 2002

Award of the Ministry of Education of China for Progress in Science and Technology, 1995

President Award of Chinese Academy of Sciences for Outstanding PhD Students, 1990

Professional Activities

Technical Journal Referee: Phys. Rev. Lett., Nature Communications, Adv. Mater., Adv. Func. Mater., Nanoscale, Sci Reports, APL Materials, Appl. Phys. Lett. and Phys. Rev. B, etc. Editorial board member for Scientific Reports. Committee member of Applied Magnetics Branch of Chinese Electronics Society. Committee member of National Key Lab for Magnetics of Institute of Physics, Chinese Academy of Sciences.

Selected Publications

Author or co-author of more than 100 papers published in international refereed journals, such as Phys. Rev. Lett., Adv. Mater., Adv. Func. Mater., Nano. Lett., Nanoscale, Sci Reports, ACS Appl. Mater. Interfaces, APL Mater., Appl. Phys. Lett. and Phys. Rev. B, etc.

List of Recent Publications


1. Yuanjun Yang, Zhenlin Luo, Shutong Wang, Wenyu Huang, Guilin Wang, Cangmin Wang, Yingxue Yao, Hongju Li, Zhili Wang, Jingtian Zhou, Yongqi Dong, Yong Guan, Yangchao Tian, Ce Feng, Yonggang Zhao, Chen Gao, and Gang Xiao, “Electric-field-assisted non-volatile magnetic switching in a magnetoelectronic hybrid structure”, Iscience 24(7), 102734 (2021)

2. Hengan Zhou, Li Cai, Teng Xu, Yonggang Zhao and Wanjun Jiang, Optimized growth of compensated ferrimagnetic insulator Gd3Fe5O12 with a perpendicular magnetic anisotropy”, Chinese Physics B 30(9), 097503 (2021)

3. Venkat Swamy†, Shu Mi†, Haoliang Huang, Chenguang Mei, Yalin Lu, Dongsheng Song, Haifeng Du and Yonggang Zhao, Structural, magnetic and low-temperature electrical transport properties of YIG thin films with heavily reduced oxygen contents, ACS Appl. Electron. Mater. 3, 3313 (2021)

4. You Ba, Shihao Zhuang, Yike Zhang, Yutong Wang, Yang Gao, Hengan Zhou, Mingfeng Chen, Weideng Sun, Quan Liu, Guozhi Chai, Jing Ma, Ying Zhang, Huanfang Tian, Haifeng Du, Wanjun Jiang, Cewen Nan, Jia-Mian Hu and Yonggang Zhao, Electric-field control of skyrmions in multiferroic heterostructure via magnetoelectric coupling, Nature Communciations, 12, 322 (2021).

5. Aitian Chen, Haoliang Huang, Yan Wen, Wenyi Liu, Senfu Zhang, Jürgen Kosel, Weideng Sun, Yonggang Zhao, Yalin Lu & Xi-Xiang Zhang, Giant magnetoelectric effect in perpendicularly magnetized Pt/Co/Ta ultrathin films on a ferroelectric substrate. Materials Horizons, 7(9), 2328 (2020)

6. Li Cai, Chenglin Yu, Liangyang Liu, Wei Xia, Heng-An Zhou, Le Zhao, Yiqing Dong, Teng Xu, Zidong Wang, Yanfeng Guo, Yonggang Zhao, Jinsong Zhang, Luyi Yang, Lexian Yang, and Wanjun Jiang, Rapid Kerr imaging characterization of the magnetic properties of two-dimensional ferromagnetic Fe3GeTe2Appl. Phys. Lett. 117, 192401 (2020)

7. Growth of High-Quality Superconducting FeSe0.5Te0.5 Films on Pb(Mg1/3Nb2/3)0.7Ti0.3O3 and Electric-Field Modulation of Superconductivity, Chenguang Mei, Zhu Lin, Ruixin Zhang, Chengchao Xu, Haoliang Huang, Yongqi Dong, Miao Meng, Ye Gao, Xi Zhang, Qinghua Zhang, Lin Gu, Huaixin Yang, Huanfang Tian, Jianqi Li, Yalin Lu, Guangming Zhang, Yonggang Zhao ACS Appl. Mater. Interfaces 12, 12238 (2020).

8. Chi Fang, Caihua Wan, Chenyang Guo, Ce Feng, Xiao Wang, Yaowen Xing, Mingkun Zhao, Guoqiang Yu, Yonggang Zhao, Xiufeng Han Observation of Large Anomalous Nernst Effect in 2D Layered Materials Fe3GeTe2. Appl. Phys. Lett. 115, 212402 (2019).

9. Xianzhe Chen, Xiaofeng Zhou, Ran Cheng , Cheng Song , Jia Zhang, Yichuan Wu, You Ba, Haobo Li, Yiming Sun, Yunfeng You, Yonggang Zhao and Feng Pan, Electric field control of Néel spin–orbit torque in an antiferromagnet, Nat. Mater. 18, 931 (2019).

10. Ce Feng, Yan Liu, Haoliang Huang, Zhaozhao Zhu, Yuanjun Yang, You Ba, Shuying Yan, Jianwang Cai, Yalin Lu, Jinxing Zhang, Sen Zhang, and Yonggang Zhao, Unusual Behaviors of Electric-Field Control of Magnetism in Multiferroic Heterostructures via Multifactor Cooperation. ACS Appl. Mater. Interfaces 11, 25569 (2019).

11. Aitian Chen, Yan Wen, Bin Fang, Yuelei Zhao, Qiang Zhang, Yuansi Chang, Peisen Li, Hao Wu, Haoliang Huang, Yalin Lu, Zhongming Zeng, Jianwang Cai, Xiufeng Han, Tom Wu, Xi-Xiang Zhang and Yonggang Zhao, Giant nonvolatile manipulation of magnetoresistance in magnetic tunnel junctions by electric fields via magnetoelectric coupling, Nature Communciations, 10, 243 (2019).

12. Haoliang Huang, Zezhi Chen, Ce Feng, Yuanjun Yang, Jianlin Wang, Jie Zhang, Bin Hong, Sixia Hu, Xiaofang Zhai, Ranran Peng, Zhengping Fu, Yonggang Zhao, and Yalin Lu, Distinguishing charge and strain coupling in ultrathin (001)-La0.7Sr0.3MnO3/PMN-PT heterostructures, Appl. Phys. Lett. 113, 262901 (2018).

13. Aitian Chen, Yonggang Zhao. Progress of converse magnetoelectric coupling effect in multiferroic heterostructures. Acta Physica Sinica. 67, 15 (2018). (invited review).

14. Yuanjun Yang, Yingxue Yao, Lei Chen, Haoliang Huang, Benjian Zhang, Hui Lin, Zhenlin Luo, Chen Gao, Y. L. Lu, Xiaoguang Li, Gang Xiao, Ce Feng, and Y. G. Zhao, Controlling the anomalous Hall effect by electric-field-induced piezo-strain in Fe40Pt60/(001)-PMN-PT multiferroic heterostructures, Appl. Phys. Lett. 112, 033506 (2018).

15. You Ba, Yan Liu, Peisen Li, Liang Wu, John Unguris, Daniel T. Pierce, Danni Yang, Ce Feng, Yike Zhang, Hao Wu, Dalai Li, Yuansi Chang, Jinxing Zhang, Xiufeng Han, Jianwang Cai, Ce-Wen Nan and Yonggang Zhao, Spatially-Resolved Electric-Field Manipulation of Magnetism for CoFeB Mesoscopic Discs on Ferroelectrics, Adv. Func. Mater. 28, 1706448 (2018).

16. Sen Zhang, Qianping Chen, Yan Liu, Aitian Chen, Lifeng Yang, Peisen Li, Zhou Shi Ming, Yi Yu, Wen Sun, Xiaozhong Zhang, Yuelei Zhao, Young Sun, and Yonggang Zhao, Strain-mediated coexistence of volatile and nonvolatile converse magnetoelectric effects in Fe/Pb(Mg1/3Nb2/3)0.7Ti0.3O3 Heterostructure. ACS Appl. Mater. Interfaces 9, 20637 (2017).

17. Meiqi Guo, Ying-Chen Chen, Chin-Yang Lin, Yao-Feng Chang, Burt Fowler, Qunqing Li, Jack C. Lee and Yonggang Zhao, Unidirectional threshold resistive switching in Au/NiO/Nb:SrTiO3 devices. Appl. Phys. Lett. 110, 233504 (2017).

18. Ying Sun, You Ba, Aitian Chen, Wei He, Wenbo Wang, Xiaoli Zheng, Lvkuan Zou, Yijun Zhang, Qu Yang, Lingjia Yan, Ce Feng, Qinghua Zhang, Jianwang Cai, Weida Wu, Ming Liu, Lin Gu, Zhaohua Cheng, Cewen Nan, Ziqiang Qiu, Yizheng Wu, Jia Li, and Yonggang Zhao, Electric-field modulation of interface magnetic anisotropy and spin reorientation transition in (Co/Pt)3/PMN−PT heterostructure. ACS Appl. Mater. Interfaces 9, 10855(2017).

19. Diyang Zhao, Shuang Qiao, Yuxiang Luo, Aitian Chen, Pengfei Zhang, Ping Zheng, Zhong Sun, Minghua Guo, Fu-kuo Chiang, Jian Wu, Jianlin Luo, Jianqi Li, Satoshi Kokado, Yayu Wang and Yonggang Zhao, Magnetoresistance Behavior of Conducting Filaments in ResistiveSwitching NiO with Different Resistance States. ACS Appl. Mater. Interfaces 9, 10835 (2017).

20. Peisen Li, Yonggang Zhao, Sen Zhang, Aitian Chen, Dalai Li, Jing Ma, Yan Liu, D. T. Pierce, J. Unguris, Hongguang Piao, Huiyun Zhang, Meihong Zhu, Xiaozhong Zhang, Xiufeng Han, Mengchun Pan, and Cewen Nan, Spatially resolved ferroelectric domain-switching-controlled magnetism in Co40Fe40B20/Pb(Mg1/3Nb2/3)0.7Ti0.3O3 multiferroic heterostructure. ACS Appl. Mater. Interfaces 9, 2642 (2017).

21. Zhong Sun, Linlin Wei, Ce Feng, Peixian Miao, Meiqi Guo, Huaixin Yang, Jianqi Li, and Yonggang Zhao, Built-In-Homojunction-Dominated Intrinsically Rectifying-Resistive Switching in NiO Nanodots for Selection-Device-Free Memory Application Adv. Electron. Mater. 3, 1600361 (2017).

22. Zhong Sun, Yonggang Zhao, Min He, Lin Gu, Chao Ma, Kuijuan Jin, Diyang Zhao, Nannan Luo, Qinghua Zhang, Na Wang, Wenhui Duan, and Ce-Wen Nan, Deterministic Role of Concentration Surplus of Cation Vacancy over Anion Vacancy in Bipolar Memristive NiO, ACS Appl. Mater. Interfaces 8, 11583 (2016).

23. A. T. Chen and Y. G. Zhao, Electrical manipulation of magnetism through strain-mediated magnetoelectric coupling in multiferroic heterostructures, APL Mater. 4, 032303 (2016) (invited review).

24. Yan Liu, Yonggang Zhao, Peisen Li, Sen Zhang, Dalai Li, Hao Wu, Aitian Chen, Yang Xu, X. F. Han, Shiyan Li, Di Lin, and Haosu Luo, Electric-field control of magnetism in Co40Fe40B20/(1-x)Pb(Mg1/3Nb2/3)O3xPbTiO3 multiferroic heterostructures with Different Ferroelectric Phases, ACS Appl. Mater. Interfaces 8, 3784 (2016).

25. Shaobo Cheng, Menglei Li, Qingping Meng, Wenhui Duan, Y. G. Zhao, X. F. Sun, Yimei Zhu, and Jing Zhu, Ferroelectric annular domains in hexagonal manganites, Phys. Rev. B 93, 054409 (2016).

26. Aitian Chen, Yonggang Zhao, Peisen Li, Xu Zhang, Renci Peng, Haoliang Huang, Lvkuan Zou, Xiaoli Zheng, Sen Zhang, Peixian Miao, Yalin Lu, Jianwang Cai and Ce-Wen Nan, Angular dependence of exchange bias and magnetization reversal controlled by electric-field-induced competing anisotropies. Adv. Mater. 28, 363 (2016).

27. Peixian Miao, Yonggang Zhao, Nengneng Luo, Diyang Zhao, Aitian Chen, Zhong Sun, Meiqi Guo, Meihong Zhu, Huiyun Zhang & Qiang Li, Ferroelectricity and Self-Polarization in Ultrathin Relaxor Ferroelectric Films, Scientific Reports 6, 19965 (2015).

28. Zhu Lin, Chenguang Mei, Linlin Wei, Zhangao Sun, Shilong Wu, Haoliang Huang, Shu Zhang, Chang Liu, Yang Feng, Huanfang Tian, Huaixin Yang, Jianqi Li, Yayu Wang, Guangming Zhang, Yalin Lu & Yonggang Zhao, Quasi-two-dimensional superconductivity in FeSe0.3Te0.7 thin films and electric-field modulation of superconducting transition, Scientific Reports 5, 14133 (2015).

29. Shaobo Cheng, S. Q. Deng, Y. G. Zhao, X. F. Sun, and Jing Zhu, Correlation between oxygen vacancies and sites of Mn ions in YMnO3, Appl. Phys. Lett. 106, 062905 (2015).

30. Y. X. Luo, D. Y. Zhao, Y. G. Zhao, F. K. Chiang, P. C. Chen, M. H. Guo, N. N. Luo, X. L. Jiang, P. X. Miao, Y. Sun, A. T. Chen, Z. Lin, J. Q. Li, W. H. Duan, J. W. Cai, and Y. Y. Wang, Evolution of Ni nanofilaments and electromagnetic coupling in the resistive switching of NiO, Nanoscale 7, 642 (2015).

31. B. S. Tao, D. L. Li, Z. H. Yuan, H. F. Liu, S. S. Ali, J. F. Feng, H. X. Wei, X. F. Han, Y. Liu, Y. G. Zhao, Q. Zhang, Z. B. Guo, and X. X. Zhang, Perpendicular magnetic anisotropy in Ta/Co40Fe40B20/MgAl2O4 structures and perpendicular CoFeB/MgAl2O4/CoFeB magnetic tunnel junction, Appl. Phys. Lett. 105, 102407 (2014).

32. Peisen Li, Aitian Chen, Dalai Li, Yonggang Zhao, Sen Zhang, Lifeng Yang, Yan Liu, Meihong Zhu, Huiyun Zhang, and Xiufeng Han, Electric Field Manipulation of Magnetization Rotation and Tunneling Magnetoresistance of Magnetic Tunnel Junctions at Room Temperature. Adv. Mater. 46, 4320 (2014).

33. Lifeng Yang, Yonggang Zhao, Sen Zhang, Peisen Li, Ya Gao, Yuanjun Yang, Haoliang Huang, Peixian Miao, Yan Liu, Aitian Chen, C. W. Nan & Chen Gao, Bipolar loop-like non-volatile strain in the (001)-oriented Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystals, Scientific Reports 4, 4591 (2014).

34. X. Zhang, Y. G. Zhao, Y. F. Cui, L. D. Ye, D. Y. Zhao, P. S. Li, J. W. Wang, M. H. Zhu, H. Y. Zhang, and G. H. Rao, Investigation on the pyroelectric property of polycrystalline GdMnO3, Appl. Phys. Lett. 104, 062903 (2014).

35. Sen Zhang, Yonggang Zhao, Xia Xiao, Yizheng Wu, Syed Rizwan, Lifeng Yang, Peisen Li, Jiawei Wang, Meihong Zhu, Huiyun Zhang, Xiaofeng Jin & Xiufeng Han, Giant electrical modulation of magnetization in Co40Fe40B20/Pb(Mg1/3Nb2/3)0.7Ti0.3O3(011) heterostructure. Scientific Reports 4, 3727 (2014).

36. J. Luo, P. S. Li, S. Zhang, H. Y. Sun, H. P. Yang, Y. G. Zhao, Low-voltage magnetoresistance in silicon, Nature 501, E1 (2013).

37. Jianlong Xu, Dan Xie, Cong Yin, Tingting Feng, Xiaowen Zhang, Gang Li, Haiming Zhao, Yuanfan Zhao, Shuo Ma, Tian-Ling Ren, Yujie Guan, Xingsen Gao, and Yonggang Zhao, Enhanced dielectric and multiferroic properties of single-phase Y and Zr co-doped BiFeO3 ceramics, J. Appl. Phys. 114, 154103 (2013).

38. Syed Rizwan, S. I. Ali, Q. T. Zhang, S. Zhang, Y. G. Zhao, M. Anis-ur-Rehman, Muhammad Tufail, and X. F. HanPiezoelectric manipulation of Co/CoO exchange-bias bilayer system at low-temperature, J. Appl. Phys. 114, 104108 (2013).

39. Yue-Lei Zhao, Qian-Ping Chen, Yong-Gang Zhao, Liqing Pan, and Young Sun, Time-dependent magnetoelectric effect in Fe-PMNPT heterostructure, A FMR study, Appl. Phys. Lett. 103, 082905 (2013).

40. Yi Yu, Xiaozhong Zhang, Y. G. Zhao, Ning Jiang, Rong Yu, J. W. Wang, C. Fan, X. F. Sun, and Jing Zhu, Atomic-scale study of topological vortex-like domain pattern in multiferroic hexagonal manganites, Appl. Phys. Lett. 103, 032901 (2013).

41. X. L. Jiang, Y. G. Zhao, Y. S. Chen, D. Li, Y. X. Luo, D. Y. Zhao, Z. Sun, J. R. Sun, and H. W. Zhao, Characteristics of different types of filaments in resistive switching memories investigated by complex impedance spectroscopy, Appl. Phys. Lett. 102, 253507 (2013).

42. X. L. Jiang, Y. G. Zhao, X. Zhang, M. H. Zhu, H. Y. Zhang, D. S. Shang, and J. R. Sun, Trap state controlled bipolar resistive switching effect and electronic transport in LaAlO3/Nb:SrTiO3 heterostructures, Appl. Phys. Lett. 102, 233501 (2013).

43. J. Li, H. X. Yang, H. F. Tian, S.-W. Cheong, C. Ma, S. Zhang, Y. G. Zhao, and J. Q. Li, Ferroelectric annular domains in hexagonal manganites, Phys. Rev. B 102, 102906 (2013).

44. J. W. Wang, Y. G. Zhao, C. Fan, X. F. Sun, S. Rizwan, S. Zhang, P. S. Li, Z. Lin, Y. J. Yang, W. S. Yan, Z. L. Luo, L. K. Zou, H. L. Liu, Q. P. Chen, X. Zhang, M. H. Zhu, H. Y. Zhang, J. W. Cai, X. F. Han, Z. H. Cheng, C. Gao, D. Xie, and T. L. Ren Ferroelectric-domain-controlled magnetic anisotropy in Co40Fe40B20/YMnO3 multiferroic heterostructure, Appl. Phys. Lett. 102, 102906 (2013).

45. S. Rizwan, S. Zhang, Tian Yu, Y. G. Zhao, and X. F. Han, Piezoelectric enhancement of GMR in spin-valves with different magnetic anisotropies, J. Appl. Phys. 113, 023911 (2012).

46. R. L. Gao, Y. S. Chen, J. R. Sun, Y. G. Zhao, J. B. Li, and B. G. Shen, Complex transport behavior accompanying domain switching in La0.1Bi0.9FeO3 sandwiched capacitors, Appl. Phys. Lett. 101, 152901 (2012).

47. S. Rizwan, G. Q. Yu, S. Zhang, Y. G. Zhao, and X. F. Han, Electric-field control of CoFeB/IrMn exchange bias system, J. Appl. Phys. 112, 064120 (2012).

48. S. Rizwan, S. Zhang, Y. G. Zhao, and X. F. Han, Exchange-bias like hysteretic magnetoelectric-coupling of as-grown synthetic antiferromagnetic structures, Appl. Phys. Lett. 101, 082414 (2012).

49. Y. H. Sun, Y. G. Zhao, M. H. Zhu, B. T. Xie, and W. B. Wu, Electric and magnetic properties of La0.67Sr0.33MnO3 thin films with a metal-insulator crossover behavior, J. Appl. Phys. 112, 023908 (2012).

50. T. L. Qu, Y. G. Zhao, P. Yu, H. C. Zhao, S. Zhang, and L. F. Yang, Exchange bias effects in epitaxial Fe3O4/BiFeO3 heterostructures, Appl. Phys. Lett. 100, 242410 (2012).

51. J. Li, H. X. Yang, H. F. Tian, C. Ma, S. Zhang, Y. G. Zhao, and J. Q. Li, Scanning secondary-electron microscopy on ferroelectric domains and domain walls in YMnO3, Appl. Phys. Lett. 100, 152903 (2012).

52. S. Zhang, Y. G. Zhao, P. S. Li, J. J. Yang, S. Rizwan, J. X. Zhang, J. Seidel, T. L. Qu, Y. J. Yang, Z. L. Luo, Q. He, T. Zou, Q. P. Chen, J.W. Wang, L. F. Yang, Y. Sun, Y. Z. Wu, X. Xiao, X. F. Jin, J. Huang, C. Gao, X. F. Han, and R. Ramesh, Electric-Field Control of Nonvolatile Magnetization in Co40Fe40B20/Pb(Mg1/3Nb2/3)0.7Ti0.3O3 Structure at Room Temperature, Phys. Rev. Lett. 108, 137203 (2012).

53. Yuanjun Yang, Meng Meng Yang, Z. L. Luo, Haoliang Huang, Haibo Wang,1 J. Bao, Chuansheng Hu, Guoqiang Pan, Yiping Yao, Yukuai Liu, X. G. Li, Sen Zhang, Y. G. Zhao, and C. Gao, Large anisotropic remnant magnetization tunability in (011)-La2/3Sr1/3MnO3/0.7Pb(Mg2/3Nb1/3)O3-0.3PbTiO3 multiferroic epitaxial heterostructures, Appl. Phys. Lett. 100, 043506 (2012).

54. X. Zhang, Y. G. Zhao, Y. F. Cui, L. D. Ye, J. W. Wang, S. Zhang, H. Y. Zhang, and M. H. Zhu, Magnetodielectric effect in Z-type hexaferrite, Appl. Phys. Lett. 100, 032901 (2012).

55. S. Rizwan, Sen Zhang, Tian Yu, Yong-Gang Zhao, Shu-Feng Zhang, and Xiu-Feng Han, Reversible and Reproducible Giant Universal Electroresistance Effect, Chin. Phys. Lett. 28, 107308 (2011).

56. Q. P. Chen, J. J. Yang, Y. G. Zhao, S. Zhang, J. W. Wang, M. H. Zhu, Y. Yu, X. Z. Zhang, Zhu Wang, Bin Yang, D. Xie, and T. L. Ren, Electric-field control of phase separation and memory effect in Pr0.6Ca0.4MnO3/PMN-PT heterostructures, Appl. Phys. Lett. 98, 172507 (2011).

57. T. L. Qu, Y. G. Zhao, D. Xie, J. P. Shi, Q. P. Chen, and T. L. Ren. Resistance switching and white-light photovoltaic effects in BiFeO3-Nb–SrTiO3 heterojunctions, Appl. Phys. Lett. 98, 173507 (2011).

58. Yuanjun Yang, Z. L. Luo, Haoliang Huang, Yachun Gao, J. Bao, X. G. Li, Sen Zhang, Y. G. Zhao, Xiangcun Chen, Guoqiang Pan, and C. Gao, Electric-field-control of resistance and magnetization switching in multiferroic Zn0.4Fe2.6O4/PMN-PT epitaxial heterostructures, Appl. Phys. Lett. 98, 153509 (2011).

59. H. F. Tian, Y. G. Zhao, X. L. Jiang, J. P. Shi, H. J. Zhang and J. R. Sun Resistance switching effect in LaAlO3/Nb-doped SrTiO3 heterostructure, Appl. Phys. A 102, 939 (2011). (A special issue on Memristive and Resistive Devices and Systems

60. H. X. Yang, H. F. Tian, Y. J. Song, Y. B. Qin, Y. G. Zhao, C. Ma, and J. Q. Li Polar Nanodomains and Giant Converse Magnetoelectric Effect in Charge-Ordered Fe2OBO3Phys. Rev. Lett. 106, 016406 (2011).

61. Lin Xiao, Yuying Zhang, YangWang, Kai Liu, Zheng Wang, Tianyi Li, Zhe Jiang, Junpeng Shi, Liang Liu, QunQing Li, Yonggang Zhao, Zhenghe Feng, Shoushan Fan and Kaili Jiang, A polarized infrared thermal detector made from super-aligned multiwalledcarbon nanotube films, Nanotechnology 22, 025502 (2011).

62. Y. F. Cui, Y. G. Zhao, L. B. Luo, J. J. Yang, H. Chang, M. H. Zhu, D. Xie, and T. L. Ren, Dielectric, magnetic, and magnetoelectric properties of La and Ti codoped BiFeO3, Appl. Phys. Lett. 97, 222904 (2010).

63. Dan Xie, Xueguang Han, Rui Li, Tianling Ren, Litian Liu, and Yonggang Zhao Characteristics of Pt/BiFeO3/TiO2/Si capacitors with TiO2 layer formed by liquid-delivery metal organic chemical vapor deposition Appl. Phys. Lett. 97, 172901 (2010).

64. Syed Rizwan, S. M. Guo, Y. Wang, Z. C. Wen, S. Zhang, Y. G. Zhao, J. Zou, and X. F. Han, Temperature and bias-assisted transport properties of LSMO-AlO-CoFeB magnetic tunnel junction, IEEE Tran. Mag. 46, 2383 (2010).

65. Z. Zhang, R. Ranjith, B. T. Xie, L. You, L. M. Wong, S. J. Wang, J. L. Wang, W. Prellier, Y. G. Zhao, and T. Wu, Enhanced low field magnetoresistance in nanocrystalline La0.7Sr0.3MnO3 synthesized on MgO nanowires, Appl. Phys. Lett. 96, 222501 (2010).

66. D. S. Shang, L. Shi, J. R. Sun, B. G. Shen, F. Zhuge, R. W. Li, and Y. G. Zhao, Improvement of reproducible resistance switching in polycrystalline tungsten oxide films by in situ oxygen annealing, Appl. Phys. Lett. 96, 072103 (2010).

67. T. L. Qu, J. Li, Y. G. Zhao, J. W. Mei, X. Liu, H. F. Tian, J. P. Shi, S. M. Guo, J. Li, D. N. Zheng, and J. Q. Li, Nonlinear current-voltage behavior and giant positive magnetoresistance in nonmagnetic Au/Yttria-stabilized zirconia/Si heterostruct, Appl. Phys. Lett. 95, 242113 (2009).

68. J. J. Yang, Y. G. Zhao, H. F. Tian, L. B. Luo, H. Y. Zhang, Y. J. He, and H. S. Luo, Electric field manipulation of magnetization at room temperature in multiferroic CoFe2O4/Pb(Mg1/3Nb2/3)0.7Ti0.3O3 heterostructures, Appl. Phys. Lett. 94(21), 212504 (2009).

69. J. P. Shi, Y. G. Zhao, H. J. Zhang, H. F. Tian, X. P. Zhang, Oxygen electromigration induced nonvolatile resistance switching at Ag/La2CuO4+x interface, Appl. Phys. Lett. 94(19), 192103 (2009).

70. L. B. Luo, Y. G. Zhao, H. F. Tian, J. J. Yang, J. Q. Li, J. J. Ding, B. He, S. Q. Wei, and C. Gao, Ferromagnetism and exchange bias in a diluted magnetic ferroelectric oxide, Phys. Rev. B 79(11), 115210 (2009).

71. H. J. Zhang, X. P. Zhang, J, P. Shi, H. F. Tian and Y. G. Zhao, Effect of oxygen content and superconductivity on the nonvolatile resistive switching in YBa2Cu3O6+x/Nb-doped SrTiO3 heterojunctions, Appl. Phys. Lett. 94, 092111 (2009).

72. Y. B. Qin, H. X. Yang, Y. Zhang, H. F. Tian, C. Ma, Y. G. Zhao, R. I. Walton, J. Q. Li, The effect of Mg doping on the structural and physical properties of LuFe2O4 and Lu2Fe3O7, J. Phys.: Condens. Mater. 21, 015401 (2009).

73. L. J. Zeng, H. X. Yang, Y. Zhang, H. F. Tian, C. Ma, Y. B. Qin, Y. G. Zhao, J. Q. Li, Nonlinear current-voltage behavior and electrically driven phase transition in charge frustrated LuFe2O4, Europhys. Lett. 84, 57011 (2008).

74. B. T. Xie, Y. G. Zhao, and C. M. Xiong, Capacitance characteristics of phase separated La0.5Ca0.5MnO3/Nb-SrTiO3 p-n junction and magnetic tunability, Appl. Phys. Lett. 93, 072112 (2008).

75. Y. H. Sun, Y. G. Zhao, H. F. Tian, C. M. Xiong, B. T. Xie, M. H. Zhu, S. Park, Weida Wu J. Q. Li, and Qi Li, The electric and magnetic modulation of fully strained “dead” layers in La0.67Sr0.33MnO3 films, Phys. Rev. B 78(2), 024412 (2008).

76. L. B. Luo, Y. G. Zhao, H. F. Tian, J. J. Yang, H. Y. Zhang, J. Q. Li, J. J. Ding, B. He, S. Q. Wei, and C. Gao, Room-temperature ferromagnetism in the Co-doped Ba0.5Sr0.5TiO3 thin films, Appl. Phys. Lett. 92, 232507 (2008).

77. J. C. Zhang, Y. Xu, L. M. Yu, S. X. Cao, and Y. G. Zhao, Resistivity minimum and the electronic strongly correlation characteristic for La2/3Sr1/3MnO3 thin film, Physica B 403, 1471 (2008).

78. H. J. Zhang, X. P. Zhang, J. P. Shi, and Y. G. Zhao, Superconductivity induced changes of the characteristics of YBa2Cu3O7-d/Nb doped SrTiO3 heterojunction, J. Phys. D 41, 135110 (2008).

79. B. T. Xie, Y. G. Zhao, C. M. Xiong, S. Park, and Weida Wu, Current-voltage characteristics of phase separated La0.5Ca0.5MnO3/Nb-SrTiO3 p-n junction and magnetic tunability, Appl. Phys. Lett. 92, 232109 (2008).

80. J. P. Shi, Y. G. Zhao, H. J. Zhang, and X. P. Zhang, Effect of superconductivity on the electronic transport and capacitance of La1.85Sr0.15CuO4/Nb-doped SrTiO3 heterojunctions, Appl. Phys. Lett. 92, 132501 (2008).

81. Zhou Zhang, Yinghui Sun, Yonggang Zhao, Gongping Li, and Tom Wu, Manganite thin film/ZnO nanowire (nanosheets) p-n junctions, Appl. Phys. Lett. 92(10), 103113 (2008).

82. Kai Liu, Yinghui Sun, Lei Chen, Chen Feng, Xiaofeng Feng, Kaili Jiang, Yonggang Zhao, and Shoushan Fan, Controlled Growth of Super-Aligned Carbon Nanotube Arrays for Spinning Continuous Unidirectional Sheets with Tunable Physical Properties, Nano. Lett. 8(2), 700 (2008)

83. J. J. Yang, S. M. Guo, L. B. Luo, C. M. Xiong, Y. G. Zhao, and Y. J. He, Rectifying property and magnetocapacitance in multiferroic p-n junction, Appl. Phys. Lett. 92(6), 063513 (2008).

84. H. F. Tian, T. L. Qu, L. B. Luo, J. J. Yang, S. M. Guo, H. Y. Zhang, Y. G. Zhao, and J. Q. Li, Strain induced magnetoelectric coupling between magnetite and BaTiO3, Appl. Phys. Lett. 92(6), 063507 (2008).

85. M. C. Ni, S. M. Guo, H. F. Tian, Y. G. Zhao, and J. Q. Li, Resistive switching effect in SrTiO3-d/Nb-doped SrTiO3 heterojunction, Appl. Phys. Lett. 91(18), 183502 (2007).

86. R. Xu, T. Xie, Y. G. Zhao, Y. D. Li, Single-crystal metal nanoplatelets: Cobalt, nickel, copper, and silver, Crystal Growth & Design 7 (9), 1904 (2007).

87. S. M. Guo, Y. G. Zhao, C. M. Xiong, W. G. Huang, Z. H. Cheng, and X. X. Xi, Current-voltage characteristics of LiNbO3/La0.69Ca0.31MnO3 heterojunction and its tunability, Appl. Phys. Lett. 91(14), 143509 (2007).

88. C. M. Xiong, Y. G. Zhao, S. M. Guo and B. T. Xie, W. G. Huang, Z. Q. Kou, and Z. H. Cheng, Voltage induced ultrasharp current jump and magnetic tunability of CaMnO3-δ/La0.69Ca0.31MnO3 heterojunction, Appl. Phys. Lett. 91(5), 053510 (2007).

89. Y. Q. Guo, J. L. Luo, D. Wu, Z. Li, N. L. Wang, D. Jin, H. Y. Zhang, and Y. G. Zhao, Low-temperature magnetic and transport properties of layered (Sr,Ca)xCoO2 single crystals, Phys. Rev. B 75, 214432 (2007).

90. T. L. Qu, Y. G. Zhao, H. F. Tian, C. M. Xiong, S. M. Guo, and J. Q. Li, Rectifying property and giant positive magnetoresistance of Fe3O4/SiO2/Si heterojunction, Appl. Phys. Lett. 90(22), 223514 (2007).

91. M. H. Zhu, Y. G. Zhao, W. Cai, X. S. Wu, S. N. Gao, K. Wang, L. B. Luo, H. S. Huang, and L.Lu, Spin glass shell and the magneto transport property of La0.67Ca0.33MnO3 nano-ring network, Phys. Rev. B 75, 134424 (2007).

92. L. B. Luo, Y. G. Zhao, G. M. Zhang, S. M. Guo, Z. Li, and J. L. Luo, Spin glass behavior in the hexagonal Na0.70MnO2, Phys. Rev. B 75, 125115 (2007).

93. Y. H. Sun, Y. G. Zhao, and C. M. Xiong, Current-induced asymmetric I-V behavior of La0.82Ca0.18MnO3 thin films and its tunability, Appl. Phys. Lett. 90(12), 122117 (2007).

94. R. Xu, T. Xie, Y. G. Zhao and Y. D. Li, Quasi-homogeneous catalytic hydrogenation over monodisperse nickel and cobalt nanoparticles, Nanotechnology 18(5), 055602 (2007).

95. Y. S. Xiao, X. P. Zhang, and Y. G. Zhao, Negative differential resistance in La0.67Ca0.33MnO3-δ/Nb-SrTiO3 p-n junction, Appl. Phys. Lett. 90(1), 013509 (2007).

96. Y. H. Sun, Y. G. Zhao, X. L. Zhang, S. N. Gao, P. L. Lang, X. P. Zhang, and M. H. Zhu, Electric current-induced giant electroresistance in epitaxial La0.67Sr0.33MnO3 thin films, J. Magn. Magn. Mater. 311, 644 (2007).

97. S. M. Guo, Y. G. Zhao, C. M. Xiong, and P. L. Lang, Rectifying I-V characteristic of LiNbO3/Nb-doped SrTiO3 heterojunction, Appl. Phys. Lett. 89(22), 223506 (2006).

98. Z. Q. Zhang, J. C. Zhang, Y. Xu, C. Jing, S. X. Cao, and Y. G. Zhao, Low-temperature resistivity minimum in dilute Mn-doping Na0.7Co1-xMnxO2: A Kondo-like oxide with strong disorder characteristics, Phys. Rev. B 74(4), 045108 (2006).

99. L. Cui, Y. G. Zhao, G. M. Zhang, W. Y. Zhang, Z. P. Guo, W. Ren, X. P. Zhang and M. H. Zhu, Structural and electronic transport properties of NaxCoO2, J. Alloy and Compounds, 426, N1-2, 72 (2006).

100. P. L. Lang, Y. G. Zhao, C. M. Xiong, P. Wang, J. Li and D. N. Zheng, The rectifying property and magnetoresistance of La0.67Ca0.33MnO3/SiO2/Si heterojunction, J. Appl. Phys. 100(5), 053909 (2006).

101. C. M. Xiong, Y. G. Zhao, Z. H. Zhao Z. Q. Kou, Z. H. Cheng, H. F. Tian, H. X. Yang, and J. Q Li, Rectifying and magnetotransport properties of the heterojunction of Co-doped and undoped TiO2-d with La0.69Ca0.31MnO3 single crystal, Appl. Phys. Lett. 89(14), 143510 (2006).

102. X. L. Zhang, Y. G. Zhao, Y. H. Sun, S. N. Gao, P. L. Lang, X. P. Zhang, and M. H. Zhu, Thickness dependence of electroresistance in La0.67Ca0.33MnO3 epitaxial films, J. Magn. Magn. Mater. 306 (1), 55-59 (2006).

103. J. Luo, Y. J. Xing, J. Zhu, D. P. Yu, Y. G. Zhao, L. Zhang, H. Fang, Z. P. Huang, and J. Xu, Structure and electrical properties of Ni nanowire/multiwalled-carbon nanotube/amorphous carbon nanotube heterojunctions, Adv. Fun. Mater. 16 (8), 1081 (2006).

104. L. B. Luo, Y. G. Zhao, G. M. Zhang, S. M. Guo, L. Cui, and J. L. Luo, Singular behavior observed in the low temperature electronic transport and thermodynamic properties of Mn doped Na0.68CoO2, Phys. Rev. B 73, 245113 (2006).

105. Y. S. Xiao, X. P. Zhang, and Y. G. Zhao, Backward diodelike behavior in La0.67Ca0.33MnO3−d/SrTiO3/Nb–SrTiO3 p-i-n junction, Appl. Phys. Lett. 88 (21), 213501 (2006).

106. C. M. Xiong, Y. G. Zhao, B. T. Xie, P. L. Lang, and K. J. Jin, Unusual colossal positive magnetoresistance of the n-n heterojunction composed of La0.33Ca0.67MnO3 and Nb-doped SrTiO3, Appl. Phys. Lett. 88 (19), 193507 (2006).

107. Z. P. Guo, Y. G. Zhao, W. Y. Zhang, L. Cui, S. M. Guo, and L. B. Luo, Effect of Ga and Mn doping on structural, electrical transport and magnetic properties of Na0.75CoO2, J. Phys. :Condensed Mater. 18(17), 4381 (2006).

108. J. C. Zhang, Z. Q. Zhang, Y. Xu, C. Jing, S. X. Cao, and Y. G. Zhao, Low temperature transport behavior and Kondo scattering in diluted Mn-doped NagCo1-xMnxO2, Appl. Phys. Lett. 88(12), 122102 (2006).  

109. H. Zhou, X.P. Zhang, B.T. Xie, Y.S. Xiao, C.X. Yang, Y.J. He, Y.G. Zhao, Fabrication of NaxCoO2 thin films by pulsed laser deposition, Thin Solid Films, 497(1-2), 338 (2006).

110. X. S. Wu, W. Cai, X. P. Zhang, Y. G. Zhao and L. Lu, Coexistence of two types of spin glass phases in polycrystalline films of La2/3Ca1/3MnO3, J. Phys. :Condensed Mater. 17(34), 6981 (2005).

111. X. P. Zhang, B. T. Xie, Y. S. Xiao, B. Yang, P. L. Lang, and Y. G. Zhao, Current-induced colossal electroresistance in p-n heterostructure of La0.67Ca0.33MnO3-δ and Nb-doped SrTiO3, Appl. Phys. Lett. 87(7), 072506 (2005).

112. P. L. Lang, Y. G. Zhao, B. Yang, X. L. Zhang, J. Li, P. Wang, and D. N. Zheng, Magnetotransport and rectifying properties in La0.67Ca0.33MnO3/YSZ/Si heterojunction, Appl. Phys. Lett. 87(5), 053502 (2005).

113. W. Y. Zhang, Y. G. Zhao, Z. P. Guo, P. T. Qiao, L. Cui, L. B. Luo, X. P. Zhang H. C. Yu, Y. G. Shi, S. Y. Zhang, T. Y. Zhao, and J. Q. Li.  Effect of Ti doping on the electrical transport and magnetic properties of layered Na0.8CoO2 compound, Solid  State Commun. 135(8), 480 (2005).

114. Y. G. Zhao, Y. H. Wang, G. M. Zhang, B. Zhang, X. P. Zhang, C. X. Yang, P. L. Lang, M. H. Zhu, P. C. Guan, Universal behavior of giant electroresistance in epitaxial La0.67Ca0.33MnO3 thin filmsAppl. Phys. Lett. 86, 122502 (2005).

115. Y. G. Zhao, W. Cai, X. S. Wu, X. P. Zhang, K. Wang, S. N. Gao, L. Lu, J. Zhu, Electrical transport and magnetic properties of nanostructured La0.67Ca0.33MnO3, Appl. Phys. A, 81(3), 607 (2005).

116. X. P. Zhang, Y. S. Xiao, H. Zhou, B.T. Xie, C. X. Yang, Y.G. Zhao, Surface morphology, structure and transport property of NaxCoO2 thin films grown by pulsed laser deposition, Mater. Sci. Forum, 475-479, 3807 (2005).

117. Y. G. Zhao, R. Fan, X. P. Zhang, H. Balci, S. B. Ogale, T. Venkatesan, T. K. Mandal and J. Gopalakrishnan, Insulator-metal transition and magnetoresistance of oxygen deficient La0.35Ca0.65MnOy, J. Mang. Mang. Mater. 284, 35 (2004).

118. M. L. Cui, J. Zhu, X. Y. Zhong, Y. G. Zhao, X. F. Duan, Cobalt valence in epitaxial Ti0.93Co0.07O2 anatase, Appl. Phys. Lett. 85, 1698 (2004).

119. P. T. Qiao, Z. H. Zhao, Y. G. Zhao, X. P. Zhang, W. Y. Zhang, S. B. Ogale, S. R. Shinde, T. Venkatesan, S. E. Lofland, C. Lanci, Structural, electrical transport and magnetic properties of the Co-doped La0.5Sr0.5TiO3 at high temperatures, Thin Solid Films 468, 8 (2004).

120. J. Luo, Z. P Huang, Y. G. Zhao, L. Zhang and J. Zhu, Arrays of heterojunctions of Ag nanowires and amorphous of carbon nanotubes, Adv. Mater. 16, 1512 (2004).

121. T. Sun T, Y. G. Zhao, R. Fan, X. P. Zhang, B. G. Liu, Y. H. Xiong, P. J. Li, Structural and electrical transport properties of Al1-xMxB2 (M = Li, vacancy), J. Supercon. 17 (3): 473-480 (2004).

122. V. N. Kulkarni, S. R. Shinde, Y. G. Zhao, R. J. Choudhary, S. B. Ogale, R. L. Greene, T. Venkatesan, Channeling and resonant backscattering investigations of Co doped diluted magnetic oxide films prepared by pulsed laser deposition, Nucl. Instrum. Meth. B 219-20, 902 (2004)

123. W. Y. Zhang, H. C. Yu, Y. G. Zhao, X. P. Zhang, Y. G. Shi, Z. H. Cheng and J. Q. Li, The metal–insulator transition in the strongly correlated layered compound NaγCoO2 induced by dilute Mn doping, J. Phys.: Condensed Mater., 1628, 4935 (2004). Also cond-mat/0312086 (2003).

124. B. C. Liu, B. S. Cao, M. H. Zhu, G. Y. Zhang, W. J. He, X. B. Guo, S. He, Y. M. Wang, X. P. Zhang, Y. G. Zhao, H. S. Huang, M. L. Liu, Z. H. Han, P. S. Ji, J. Q. Huang, B. X. Gao, and H. Y. Liang, An HTS 20-pole microstrip filter for GSM-1800 base stations, J. Supercon. 16, 819 (2003).

125. Y. G. Zhao, S. R. Shinde, S. B. Ogale, J. Higgins, R. J. Choudhary, V. N. Kulkarni, R. L. Greene, T. Venkatesan, S. E. Lofland, C. Lanci, J. P. Buban, N. D. Browning, S. Das Sarma, and A. J. Millis, Co-doped La1-xSrxTiO3: A diluted magnetic metal with high Curie temperature, Appl. Phys. Lett. 83, 2199 (2003). Also CONDMAT0209267 (2002)

126. Y. H. Xiong, P. J. Li, X. P. Zhang, Y. G. Zhao, B. S. Cao, and D. B. Zeng, Influence of doping effect on structure and superconducting properties of MgB2, Tran. Nonferr. Metal Soc. 13, 912 (2003).

127. B. Wei, X. P. Zhang, K. Liu, B. S. Cao, G. Y. Zhang, B. C. Liu, M. H. Zhu, M. F. Zhu, L. M. Gao, W. J. He, X. B. Guo, S. He, Y. G. Zhao, and N. F. Gao, HTS subsystem formed by 12-pole filter for GSM 1800 mobile communication, Physica C 386, 551 (2003).

128. T. Sun, X. P. Zhang, Y. G. Zhao, R. Shen, K. Wang, L. W. Zhang, B. S. Cao, Y.H. Xiong, P. J. Li, and H. H. Wen, Study of the reactions between MgB2 and Ag at high temperature, Physica C 382, 367 (2002).

129. Y. G. Zhao, W. Cai, J. Zhao, X. P. Zhang, R. Fan, B. S. Cao, M. H. Zhu, T. Wu, S. B. Ogale, S. R. Shinde, T. Venkatesan, Q. Y. Tu, T. K. Mandal, and J. Gopalakrishnan, Insulator-metal transition and magnetoresisstance of La0.5Ca0.5MnOy induced by tuning the oxygen content, J. Appl. Phys. 92, 5391 (2002).

130. Y. Z. He, H. Niu, J. J. Qi, Y. G. Zhao, B. S. Cao, A simple tool to cut the protruding flange of photoresist formed in spin coating process for lithography technology”, Rev. Sci. Instruments, 73, 2205 (2002).

131. Eric Li, R. P. Sharma, S. B. Ogale, Y. G. Zhao, T. Venkatesan, J. J. Li, W. L. Cao, and C. H. Lee, Sharp resonant multiplet in femtosecond optical pair-breaking spectroscopy of optimally doped, underdoped, and Zn-doped YBa2Cu3O7-d: transient insulating regions in the superconducting state, Phys. Rev. B 65, 184519 (2002).

132. G. Y. Zhang, M. H. Zhu, B. S. Cao, W. J. He, X. B. Guo, S. He, B. C. Liu, Y. M. Wang, X. P. Zhang, Y. G. Zhao, M. L. Liu, Z. H. Han, B. X. Gao, Design and performance of a compact forward-coupled HTS microstrip filter for a GSM system, IEEE Tran. Appl. Supercond. 12, 1897 (2002).

133. Y. Z. He, Y. G. Zhao, M. H. Zhu, X. P. Zhang, B. S. Cao, A novel method of temperature control for a crystal growth puller, Crystal Research and Technology, 37, 1280 (2002).

134. Y. Z. He, Y. L. Han, Y. G. Zhao, B. S. Cao, Investigation into the flange problem of resist along the edge of substrate caused by spin coating, Microelectronic Engineering, 63, 347 (2002).

135. Y. Z. He, P. L. Lang, Y. G. Zhao and B. S. Cao, A facile method to control cooling rate and its possible application, Crystal Research and Technology, 37, 231 (2002).

136. Y. G. Zhao, W. Cai, J. Zhao, X. P. Zhang, B. S. Cao, M. H. Zhu, L.W. Zhang, S. B. Ogale, Tom Wu, T. Venkatesan, Li Lu, T. K. Mandal and J. Gopalakrishnan, Electrical transport and magnetic properties of La0.5Ca0.5MnO3-y with different oxygen contents, Phys. Rev. B 65, 144406 (2002).

137. Y. G. Zhao, Tom Wu, S. B. Ogale, Eric Li, R. P. Sharma, T. Venkatesan, J. J. Li, W. L. Cao, and C. H. Lee, Optical Cooper pair breaking spectroscopy of YBa2Cu2.8Zn0.2O7-d thin films, Supercond. Sci. Technol. 15, 468 (2002).

138. X. P. Zhang, Y. G. Zhao, P. T. Qiao, Z. S. Yin, S. L. Jia, B. S. Cao, M. H. Zhu, Z. H. Han, X. L. Wang, B. L. Gu, Investigation on the Structure and Superconducting Properties of Mg1-xMxB2 (M=deficiency or Ca), J. Supercond., 15, N2, 159 (2002).

139. Y. G. Zhao, Eric Li, Tom Wu, S. B. Ogale, R. P. Sharma, and T. Venkatesan, J. J. Li, W. L. Cao, C. H. Lee, H. Sato, and M. Naito, Optical Cooper Pair Breaking Spectroscopy of Cuprate Superconductors, Phys. Rev. B 63, 132507 (2001).

140. Y. G. Zhao, X. P. Zhang, P. T. Qiao, H. T. Zhang, S. L. Jia, B. S. Cao, M. H. Zhu, Z. H. Han, X. L. Wang, B. L. Gu, Effect of Li doping on structure and superconducting transition temperature of Mg1-xLixB2, Physica C 361(2), 91 (2001). also Cond-mat/0103077

141. T. Liu, Y. G. Zhao, T. B. Li, M. H. Zhu, L. W. Zhang, H. S. Huang, M. L. Liu, Y. L. Zhou, M. He, H. B. Lu, B. S. Cao, Correlation between the morphology of Ag and the contact resistivity of the Ag/YBa2Cu3O7-d thin film contact, J. Supercond., 14, 455 (2001).

142. F.M. Araujo-Moreira, P. N. Lisboa, A. J. C. Lanfredi, W. A. Ortiz, S. M. Zanetti, E. R. Leite, A. W. Mombru, L. Ghivelder, Y. G. Zhao, and T. Venkatesan, Structural, thermal and magnetic properties of Pr-123 polycrystalline and thin film superconductors, J. Magn. Magn. Mater. 226, 283-284 (2001).

143. W. Cai, Y. G. Zhao, Y. Z. He, L. W. Zhang, M. H. Zhu, H. S. Huang, M. L. Liu and B. S. Cao, Effect of oxygen content on the electrical transport property of La0.4Ca0.6MnO3-y, Phys. Stat. Sol. (a) 187, No.2, 529 (2001). (Corresponding author)

144. Y. G. Zhao, X. P. Zhang, P. T. Qiao, H. T. Zhang, S. L. Jia, B. S. Cao, M. H. Zhu, Z. H. Han, X. L. Wang, B. L. Gu, Influence of the starting composition Mg1-xB2 on the structural and superconducting properties of the MgB2 phase, Physica C366, 1 (2001). also Cond-mat/0105053

145. Y. G. Zhao, Y. H. Li, S. B. Ogale, M. Rajeswari, V. Smolyaninova, T. Wu, A. Biswas, L. Salamanca-Riba, R. L. Greene, R. Ramesh, and T. Venkatesan, Electrical transport and magnetic properties of a possible electron doped layered manganese oxide, Phys. Rev. B 61, 4141 (2000).

146. F. M. Araujo-Moreira, P. N. Lisboa-Filho, A. J. C. Lanfredi, W. A. Ortiz, S. M. Zanetti, E. R. Leite, A. W. Mombru, L. Ghivelder, Y. G. Zhao, and V. Venkatesan, The search for superconductivity in PrBa2Cu3O7-d, Physica C 341-348, 413 (2000).

147. Y. H. Li, L, Salamanca-Riba, Y. G. Zhao, S. B. Ogale, R. Ramesh, and T. Venkatesan, Formation of the (La0.67Sr0.33)2MnO4 phase in the La-Sr-Mn-O thin films by pulsed laser deposition”, J. Mater. Res. 15, 1524 (2000).

148. Y. G. Zhao, R. C. Srivastava, P. Fournier, V. Smolyaninova, M. Rajeswari, T. Wu, Z. Y. Li, R. L. Greene, T. Venkatesan, Transport and magnetic properties of La0.8Ce0.2MnO3 thin films grown by pulsed laser deposition, J. Mang. Mang. Mater. 220, 161 (2000).

149. L. W. Zhang, G. Feng, H. Liang, B. S. Cao, M. H. Zhu, Y. G. Zhao, The magnetotransport properties of LaMn1-xCrxO3 manganites, J. Mang. Mang. Mater. 219, 236 (2000).

150. L. W, Zhang, Z. J. Chen, L. F. Di. B. S. Cao, M. H. Zhu, and Y. G. Zhao, Influence of preparation on structure and properties of La0.67Ca0.33MnO3 bulk material, Phys. Stat. Sol. (a) 179: (1) 205 (2000).

151. L. Lu, Y. M. Zhao, Y. G. Zhao, X. N. Jing, S. L. Li, J. W. Xiong, D. L. Zhang, Which phase contributes to the normal-state gap structure in underdoped cuprates?, Physica C 341, 933 (2000).

152. Y. G. Zhao, W. L. Cao, J. J. Li, H. D. Drew, R. Shreekala, C. H. Lee. S. P. Pai, M. Rajeswari. S. B. Ogale, R. P. Sharma, G. Baskaran, and T. Venkatesan, Unusual photon energy dependence of the Cooper pair breaking rate in YBa2 Cu3O7-d epitaxial thin films, J. Supercond. 12, 675 (1999).

153. Y. G. Zhao, M. Rajeswari, R. C. Srivastava, A. Biswas, S. B. Ogale, D. J. Kang, W. Prellier, Zhiyun Chen, R. L. Greene, and T. Venkatesan, Effect of oxygen content on the structural, transport and magnetic properties of La1-dMn1-dO3 thin films, J. Appl.Phys. 86, 6327 (1999).

154. Y. G. Zhao, M. Rajeswari, R. C. Srivastava, Z. W. Dong, R. P. Sharma, and T. Venkatesan, Growth and electrical properties of PrSr2Cu3O7-d thin films, Physica C 328, No.3&4, 152 (1999).

155. T. Venkatesan, R. P. Sharma, Y. G. Zhao, Z. Y. Chen, C. H. Lee, W. L. Cao, J. J. Li, H. D. Drew, S. B. Ogale, R. Ramesh, M. Rajeswari, T. Wu, I. Jin, S. Choopun, M. Johnson, W. K. Chu, G. Baskaran, Superconducting cuprates and magnetoresistive manganites: similarities and contrasts, Mater. Sci. Eng. B63, 36 (1999).

156. Y. G. Zhao, J. J. Li, R. Shreekala, H. D. Drew, C. L. Chen, W. L. Cao. C. H. Lee, M. Rajeswari, S. B. Ogale, R. Ramesh, G. Baskaran, and T. Venkatesan, Femtosecond laser induced conductive and resistive transients in La0.7Ca0.3MnO3: charge transfer and relaxation dynamics, Phys. Rev. Lett. 81, 1310 (1998).

157. Y. G. Zhao, Z. W. Dong, M. Rajeswari, R. P. Sharma, and T. Venkatesan, Growth of single-phase PrBa0.7Sr1.3Cu3O7 thin films and the role of lattice strain on the transport properties, Appl. Phys. Lett. Vol. 72, No.8, 981 (1998).

158. Y. G. Zhao, Z. W. Dong, M. Rajeswari, R. P. Sharma, and T. Venkatesan, Electrical transport properties of highly doped PrBa2-xSrxCu3O7 thin films prepared by pulsed laser deposition, Phys. Rev. B58, 1068 (1998).

159. Y. G. Zhao, S. B. Ogale, R. Shreekala, Z. W. Dong, S. P. Pai, M. Rajeswari, T. Venkatesan, W. L. Cao, W. Lu, and C. H. Lee, Laser power and temperature dependence of the transient photoimpedance response of epitaxial YBa2Cu3O7-d thin films, J. Appl. Phys. Vol.83, No.3, 1531 (1998).

160.  Z. W. Dong, S. P. Pai, R. Ramesh, T. Venkatesan, M. Johnson, Z. Y. Chen, A. Cavanaugh, Y. G. Zhao, X. L. Jiang, R. P. Sharma, S. B. Ogale, and R. L. Greene, Novel high Tc transistors with manganite oxides, J. Appl. Phys. 83, 6780 (1998).