Faculty

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GUO Yong, Professor

Department of Physics, Tsinghua University

School of Sciences Building

Beijing 100084, China

Office:Physics Building W326

Phone:8610-62794359

Fax:8610-62781604

guoy66@tsinghua.edu.cn

Education and Employment

Education:

Zhangbei Normal School, Hebei Province, 1984

BS Physics, Hebei Normal University, 1990

MS Theory Physics, Hebei Normal University, 1993

Institute for Materials Research, Tohoku University, Japan, Student abroad, 1997.5-1998.4

Ph.D Condensed Matter Physics, Tsinghua University, 1998

Employment:

Dongyingpan High School, Zhangbei County, Hebei Province, High School Teacher, (1984.7-1986.8)

Department of Physics, Hebei Normal University, Assistant (1993.7-1995.1)

Department of Physics, Tsinghua University, Assistant (1995.2-1997.4)

Department of Physics, Tsinghua University, Lecturer (1998.8- 2000.7)

Department of Physics, Tsinghua University, Associate Professor (2000.8-2005.11)

Institute for Materials Research, Tohoku University, Japan, Visiting Scientist, (1999.7-1999.10; 2000.7-2000.9; 2001.7-2001.9; 2002.7-2002.8).

Department of Physics, Tsinghua University, Professor (2005.12-)

Teaching

Graduate Course “Solid State Theory” (1994 Spring)

Undergraduate Course “Optics”

Undergraduate Course “Quantum Physics”

Undergraduate Course “Quantum Mechanics and Statistical Mechanics”

Undergraduate Course “Quantum Mechanics”

Undergraduate Course “Quantum Mechanics II”

Interests

Professor Guo's research interests are in the following fields:

·Spintronics

·Quantum Noise

·Nanomagnetism

·Mesoscopic Physics

·Surfaces and Interfaces Physics

The current research effort focuses on the following directions:

·Spin transport through kinds of mesoscopic systems

·Spin-orbit coupling effects

·Physics of spin-based devices (such as spin valves, spin-filtering devices, spin diode, and spin transistor, etc.)

·Physics of magnetic quantum structures

·Transport and electronic states in quantum dots

·Transport and electronic states in graphene

Awards and Membership

Awards

·Program for New Century Excellent Talents in University (2005)

·Prize of scientific paper for remembering Mr. Mei Yi Qi, Second Class, Tsinghua University (2004)

·Prize of The 9th Academic New Person, Tsinghua University (2004)

·“Tunneling transport properties in semiconductor quantum structures and magnetic quantum structures”, Prize of Science and Technology, Second Class, Beijing (2002)

·Prize of scientific paper for remembering Mr. Mei Yi Qi, Second Class, Tsinghua University (2000)

Selected Publications

1. Y. Guo, S. X. Wang, J. W. Huang, and H. F. Lü

Tunneling optoresistance effect and magneto-optoresistance effect in planar heterostructures

Physical Review B 111 (24), 245401 (2025).

2. S. X. Wang, L. P. Luo, and Y. Guo

Tunneling optoresistance effect in two-dimensional modulated quantum structures

Physical Review B 109 (8), 085131 (2024).

3. L. P. Luo, S. X. Wang, J. Zheng, and Y. Guo

Spin- and valley-resolved tunneling magnetoresistance in a ferromagnetic transition-metal dichalcogenide planar heterojunction modulated by polarized light

Physical Review B 108 (7), 075434 (2023).

4. D. N. Liu, S. S. Ke, R. Y. Yuan, and Y. Guo

Theoretical study on negative differential resistance in transition metal dichalcogenide planar heterostructures

Applied Physics Letters 122 (21), 213101(2023).

5. J. Zheng, L. Ma, C. L. Li, R.Y. Yuan, F. Chi, and Y. Guo

On-state current paths and off-state leakage in nanoscale silicene field-effect transistors

Physical Review Applied 20 (1), 014065 (2023).

6. D. N. Liu and Y. Guo

Strain-tuned spin polarization and optical conductivity in MoS2/EuS heterostructures

Physical Review B 107 (7), 075430 (2023).

7. L. P. Luo, S. X. Wang, and Y. Guo

Optically-controlled valley filter and transistor based on transition-metal dichalcogenide planar heterojunctions

Physical Review Applied 18 (4), 044020 (2022).

8. D. N. Liu and Y. Guo

Pure valley current and negative differential resistance in optoelectronic superlattices based on monolayer transition metal dichalcogenides

Physical Review B 106 (3), 035411 (2022).

9. J. Zheng, Y. Xiang, C. L. Li, R. Y. Yuan, F. Chi, and Y. Guo

Multichannel Depletion-Type Field-Effect Transistor Based on Ferromagnetic Germanene

Physical Review Applied 16 (2), 024046 (2021).

10. D. N. Liu, B. Y. Liu, R. Y. Yuan, J. Zheng, and Y. Guo

Valley filter and valley valve based on WSe2 double-barrier junctions modulated by polarized light

Physical Review B 103 (24), 245432 (2021).

11. D. N. Liu and Y. Guo

Optoelectronic superlattices based on 2D transition metal dichalcogenides

Applied Physics Letters 118 (12), 123101 (2021).

12. J. Zheng, F. Chi, and Y. Guo

Spin-current diodes based on germanene and stanene subjected to local exchange fields

Applied Physics Letters 113 (11), 112404 (2018).

13. J. Zheng, F. Chi, and Y. Guo

Thermal Spin Generator Based on a Germanene Nanoribbon Subjected to Local Noncollinear Exchange Fields

Physical Review Applied 9 (2), 024012 (2018).

14. P. F. Yang and Y. Guo

Spin-dependent tunneling time in periodic diluted-magnetic semiconductor/nonmagnetic-

barrier superlattices

Applied Physics Letters 108 (5), 052402 (2016).

15. X. Yang, J. Zheng, F. Chi, and Y. Guo

Spin power and efficiency in an Aharnov-Bohm ring with an embedded magnetic impurity quantum dot

Applied Physics Letters 106 (19), 193107 (2015).

16. Y. Song, H. C. Wu, and Y. Guo

Negative differential resistances in graphene double barrier resonant tunneling diodes

Applied Physics Letters 102 (9),093118 (2013).

17. Y. S. Liu, X. F. Yang, X. K. Hong, M. S. Si, F. Chi, and Y. Guo

A high-efficiency double quantum dot heat engine

Applied Physics Letters 103 (9), 093901 (2013).

18. Y. Song, F. Zhai, and Y. Guo

Generation of a fully valley-polarized current in bulk graphene

Applied Physics Letters 103 (18),183111 (2013).

19. Y. S. Liu, X. F. Yang, F. Chi, M. S. Si, and Y. Guo

A proposal for time-dependent pure-spin-current generators

Applied Physics Letters 101 (21), 213109 (2012).

20. Y. Guo, F. R. Shen, and X. Y. Chen

A tunable spin filter in periodic diluted magnetic semiconductor/semiconductor superlattices

Applied Physics Letters 101 (1), 012410 (2012).

21. F. Chi, J. Zheng, Y. S. Liu, and Y. Guo

Refrigeration effect in s single-level quantum dot with thermal bias

Applied Physics Letters 100 (23), 233106 (2012).

22. Y. Song, H. C. Wu, and Y. Guo

Giant Gooshanchen shift in graphene double-barrier structures

Applied Physics Letters.100 (25), 253116 (2012).

23. L. Qin, H. F. Lü, and Y. Guo

Enhanced spin injection efficiency in a four-terminal quantum dots system

Applied Physics Letters 96 (7), 072109 (2010).

24. H. F. Lü, Y. Guo, X. T. Zu, and H. W. Zhang

Optically controlled spin polarization in a spin transistor

Applied Physics Letters 94 (16),162109 (2009).

25. H. F. Lü and Y. Guo

Pumped pure spin current and shot noise spectra of a two-level Rashba dot

Applied Physics Letters 92 (6), 062109 (2008).

26. L. Han and Y. Guo

Comment on ``Berry Phase in a Composite System"

Physical Review Letters 100 (16), 168901(2008).

27. T. G. Cheng, H. F. Lü, and Y. Guo

Optically induced shot noise enhancement and suppression in a λ-type double-dot system

Physical Review B 77 (20), 205305 (2008).

28. R. Zhu and Y. Guo

Dresselhaus spin-orbit coupling effect on the shot noise in resonant double-barrier structures

Applied Physics Letters 90 (23), 232104 (2007).

29. H. F. Lü and Y. Guo

Kondo effect and spin-polarized transport through a quantum dot with Rashba spin-orbit interaction

Physical Review B 76 (4), 045120 (2007).

30. H. F. Lü and Y. Guo

Pure spin current in a three-terminal spin device in the presence of Rashba spin-orbit interaction

Applied Physics Letters 91 (9), 092128 (2007).

31. R. Zhu and Y. Guo

Shot noise in the grapheme-based double-barrier structures

Applied Physics Letters 91 (25), 252113 (2007).

32. Y. X. Li, Y. Guo, and B. Z. Li

Rashba spin-orbit effect on electronic transport in ferromagnetic/semiconductor/ferromagnetic nanostructures under an applied electric field

Physical Review B 71 (1), 012406 (2005).

33. Y. Guo, C. E. Shang, and X. Y. Chen

Spin-dependent delay time and the Hartman effect in tunneling through diluted-magnetic-semiconductor/semiconductor heterostructures

Physical Review B 72 (4), 045356 (2005).

34. F. Zhai, H. Q. Xu, and Y. Guo

Tunable spin polarization in a two-dimensional electron gas modulated by a ferromagnetic metal stripe and a Schottky metal stripe

Physical Review B 70 (8), 085308 (2004).

35. H. C. Wu, Y. Guo, X. Y. Chen, and B. L. Gu

Giant persistent current in a quantum ring with multiple arms

Physical Review B 68 (12), 125330 (2003).

36. Y. Guo, X.Y. Chen, F. Zhai, B. L. Gu, and Y. Kawazoe

Spin-filter diode based on ZnSe/Zn1-xMnxSe/Zn1-yMnySe/ZnSe heterostructures

Applied Physics Letters 80 (24), 4591 (2002).

37. Y. Guo, F. Zhai, B. L. Gu, and Y. Kawazoe

Resonant enhancement and negative-differential resistances in hybrid magnetic-electric barrier structures

Physical Review B 66 (4), 045312 (2002).

38. F. Zhai, Y. Guo, and B. L. Gu

Giant magnetoresistance effect in a magnetic-electric barrier structure

Physical Review B 66 (12), 125305 (2002).

39. Y. Guo, B. L. Gu, H. Wang, and Y. Kawazoe

Spin-resonant suppression and enhancement in ZnSe/Zn1-xMnxSe multilayer heterostructure

Physical Review B 63 (21), 214415 (2001).

40.Y. Guo, J. Q. Lu, B. L. Gu, and Y. Kawazoe

Spin-resonant splitting in magnetically modulated semimagnetic semiconductor

superlattices

Physical Review B 64 (15), 155312 (2001).

41. Y. Guo, B. L. Gu, Z. Zeng, J. Z. Yu, and Y. Kawazoe

Electron-spin polarization in magnetically modulated quantum structures

Physical Review B 62 (4), 2635 (2000).

42. Y. Guo, H. Wang, B. L. Gu, and Y. Kawazoe

Electric field effects on electronic tunneling transport in magnetic barrier structures

Physical Review B 61 (3), 1728 (2000).

43. Y. Guo, B. L. Gu, W. H. Duan, and Y. Zhang

Transport in asymmetric multiple-barrier magnetic nanostructures

Physical Review B 55 (15), 9314 (1997).