Education and Employment

Education

Teaching

Surface Physics

College Physics B2

Laboratory Physics (Engineering & Physics Undergraduates)

Interests

Surface, interface and low-dimensional Physics

High temperature superconductors

Topological insulators and topological superconductors

Molecular beam epitaxy

Scanning tunneling microscope

Awards and Membership

Editorial board for Physical Review B (2026.07-)

Low Temperature Physics Committee, Chinese Physical Society (2025.09-now)

Young Editorial Board Member, Chinese Physics Letters, Chinese Physics B, Acta Physica Sinica, and Physics (2020-now)

Natural Science Award, Ministry of Education of China (2018)

Lawrence Golub Postdoctoral Fellow at Harvard Physics Department (2011)

Excellent Doctoral Dissertation in Beijing (2012)

Selected Publications（*Corresponding author）

>110 publications, including 25 papers in Science (1), Nature series (9), Physical Review Letters (17), Science Bulletin (4) and Physical Review B/Applied Physics Letters (44). Total number of times cited: > 11500.

1. F. J. Cheng, C. C. Lou, A. X. Chen, L. X. Wei, Y. Liu, B. Y. Deng, F. S. Li_*, Z. Q. Wang_*, Q. K. Xue_*, X. C. Ma, C. L. Song_*, Imaging sublattice Cooper-pair density waves in monolayer 1T¢-MoTe2. Phys. Rev. Lett. 135, 166201 (2025).

2. Q. J. Cheng, Y. W. Wang, M. Q. Ren, Z. X. Deng, C. C. Lou, X. C. Ma_*, Q. K. Xue_*, C. L. Song_*, Atomic-scale imaging of electronic nematicity in ferropnictides. Commun. Mater. 6, 162 (2025).

3. M. Q. Ren, Q. J. Cheng, H. H. He, Z. X. Deng, F. J. Cheng, Y. W. Wang, C. C. Lou, Q. H. Zhang, L. Gu, K. Liu_*, X. C. Ma_*, Q. K. Xue_*, C. L. Song_*, Full-gap superconductivity in BaAs/ferropnictide heterostructures. Phys. Rev. Lett. 134, 246203 (2025).

4. S. Z. Wang, X. Q. Yu, L. X. Wei, L. Wang, Q. J. Cheng, K. Peng, F. J. Cheng, Y. Liu, F. S. Li_*, X. C. Ma, Q. K. Xue_*, C. L. Song_*, Quantum spin driven Yu-Shiba-Rusinov multiplets and fermion-parity-preserving phase transition in K3C60. Sci. Bull. 69, 1392 (2024).

5. M. Q. Ren, F. J. Cheng, Y. F. Zhao, M. Q. Gu, Q. J. Cheng, B. H. Yan, Q. H. Liu_*, X. C. Ma_*, Q. K. Xue_*, C. L. Song_*, Chiral charge density wave and backscattering-immune orbital texture in monolayer 1T-TiTe2. Nano Lett. 23, 10081 (2023).

6. J. S. Zhou, R. Z. Xu, X. Q. Yu, F. J. Cheng, W. X. Zhao, X. Du, S. Z. Wang, Q. Q. Zhang, X. Gu, S. M. He, Y. D. Li, M. Q. Ren, X. C. Ma, Q. K. Xue, Y. L. Chen_*, C. L. Song, L. X. Yang_*, Evidence for band renormalizations in strong-coupling superconducting alkali-fulleride films, Phys. Rev. Lett. 130, 216004 (2023).

7. C. L. Song, E. J. Main, F. Simmons, S. Liu, B. Phillabaum, K. A. Dahmen, E. W. Hudson, J. E. Hoffman_*, E. W. Carlson_*, Critical nematic correlations throughout the superconducting doping range in Bi2-zPbzSr2-yLayCuO6+x. Nat. Commun. 14, 2622 (2023).

8. R. F. Wang, Y. L. Xiong, Q. Zhu, M. Q. Ren, H. Yan, C. L. Song_*, X. C. Ma_*, Q. K. Xue_*, Anomalous superconducting proximity effect of planar Pb-RhPb2 heterojunctions in the clean limit. npj Quantum Mater. 7, 116 (2022).

9. J. Q. Fan, X. Q. Yu, F. J. Cheng, H. Wang, R. F. Wang, X. B. Ma, X. P. Hu, D. Zhang, X. C. Ma_*, Q. K. Xue_*, C. L. Song_*, Direct observation of nodeless superconductivity and phonon modes in electron-doped copper oxide Sr1-xNd_xCuO2. Natl. Sci. Rev. 9, nwab225 (2022).

10. M. Q. Ren, S. Han, J. Q. Fan, L. Wang, P. D. Wang, W. Ren, K. Peng, S. J. Li, S. Z. Wang, F. W. Zheng, P. Zhang, F. S. Li_*, X. C. Ma_*, Q. K. Xue_*, C. L. Song_*, Semiconductor–metal phase transition and emergent charge density waves in 1T-ZrX2 (X = Se, Te) at the two-dimensional limit. Nano Lett. 22, 476 (2022).

11. S. Z. Wang, M. Q. Ren, S. Han, F. J. Cheng, X.C. Ma, Q. K. Xue, C. L. Song_*, Merohedral disorder and impurity impacts on superconductivity of fullerenes. Commun. Phys. 4, 114 (2021).

12. Y. Zhong, J. Q. Fan, R. F. Wang, S. Z. Wang, X. F. Zhang, Y. Y. Zhu, Z. Y. Dou, X. Q. Yu, Y. Wang, D. Zhang, J. Zhu, C. L. Song_*, X. C. Ma_*, Q. K. Xue_*, Direct visualization of ambipolar Mott transition in cuprate CuO2 planes. Phys. Rev. Lett. 125, 077002 (2020).

13. M. Q. Ren, S. Han, S. Z. Wang, J. Q. Fan, C. L. Song_*, X. C. Ma_*, Q. K. Xue_*, Direct observation of full-gap superconductivity and pseudogap in two-dimensional fullerides. Phys. Rev. Lett. 124, 187001 (2020).

14. Y. Wang, Y. Zhong, Z. L. Luo, M. H. Liao, R. F. Wang, Z. Y. Dou, Q. H. Zhang, D. Zhang, L. Gu, C. L. Song_*, X. C. Ma_*, Q. K. Xue_*, Real-space observation of charge ordering in epitaxial La2-xSrxCuO4 films. NPJ Quant. Mater. 4, 15 (2019).

15. G. Y. Zhou, Q. H. Zhang, F. W. Zheng, D. Zhang, C. Liu, X. X. Wang, C. L. Song, K. He, X. C. Ma, L. Gu_*, P. Zhang_*, L. L. Wang_*, Q. K. Xue, Interface enhanced superconductivity in monolayer FeSe films on MgO(001): charge transfer with atomic substitution. Sci. Bull. 63, 747 (2018).

16. Y. M. Zhang, J. Q. Fan, W. L. Wang, D. Zhang, L. L. Wang, W. Li, K. He, C. L. Song_*, X. C. Ma_*, Q. K. Xue_*, Observation of interface superconductivity in a SnSe2/epitaxial graphene van der Waals heterostructure. Phys. Rev. B 98, 220508(R) (2018).

17. Y. F. Lv, W. L. Wang, Y. M. Zhang, H. Ding, W. Li, L. L. Wang, K. He, C. L. Song_*, X. C. Ma, Q. K. Xue_*, Experimental signature of topological superconductivity and Majorana zero modes on b-Bi2Pd. Sci. Bull. 62, 852 (2017).

18. C. L. Song, Q. K. Xue, Cuprate superconductors may be conventional after all. Physics 10, 129 (2017).

19. Z. F. Wang, H. M. Zhang, D. F. Liu, C. Liu, C. J. Tang, C. L. Song, Y. Zhong, J. P. Peng, F. S. Li, C. N. Nie, L. L. Wang, X. J. Zhou_*, X. C. Ma_*, Q. K. Xue, Feng Liu_*, Topological edge states in a high-temperature superconductor FeSe/SrTiO3(001) film. Nat. Mater. 15, 968 (2016).

20. H. Ding, Y. F. Lv, K. Zhao, W. L. Wang, L. L. Wang, C. L. Song, X. Chen, X. C. Ma, Q. K. Xue_*, High-temperature superconductivity in single-unit-cell FeSe films on anatase TiO2(001). Phys. Rev. Lett. 117, 067001 (2016).

21. Y. Zhong, Y. Wang, S. Han, Y. F. Lv, W. L. Wang, D. Zhang, H. Ding, Y. M. Zhang, L. L. Wang, K. He, R. D. Zhong, J. A. Schneeloch, G. D. Gu, C. L. Song_*, X. C. Ma_*, Q. K. Xue_*, Nodeless pairing in superconducting copper-oxide monolayer films on Bi2Sr2CaCu2O8+d. Sci. Bull. 61, 1239 (2016).

22. C. L. Song, H. M. Zhang, Y. Zhong, X. P. Hu, S. H. Ji, L. L. Wang, K. He, X. C. Ma_*, Q. K. Xue_*, Observation of double-dome superconductivity in potassium-doped FeSe thin films. Phys. Rev. Lett. 116, 157001 (2016).

23. Y. F. Lv, W. L. Wang, J. P. Peng, H. Ding, Y. Wang, L. L. Wang, K. He, S. H. Ji, R. D. Zhong, J. Schneeloch, G. D. Gu, C. L. Song_*, X. C. Ma_*, Q. K. Xue_*, Mapping the electronic structure of each ingredient oxide layer of high-Tc cuprate superconductor Bi₂Sr₂CaCu2O8+d. Phys. Rev. Lett. 115, 237002 (2015).

24. D. Huang, C. L. Song, T. A. Webb, S. Fang, C. Z. Chang, J. S. Moodera, E. Kaxiras, J. E. Hoffman_*, Revealing the empty-state electronic structure of single-unit-cell FeSe/SrTiO3. Phys. Rev. Lett. 115, 017002 (2015).

25.C. L. Song_*, L. L. Wang, K. He, S. H. Ji, X. Chen, X. C. Ma_*, Q. K. Xue, Probing Dirac fermion dynamics in topological insulator Bi2Se3 films with a scanning tunneling microscope. Phys. Rev. Lett. 114, 176602 (2015).

26. H. M. Zhang, Y. Sun, W. Li, J. P. Peng, C. L. Song, Y. Xing, Q. H. Zhang, J. Q. Guan, Z. Li, Y. F. Zhao, S. H. Ji, L. L. Wang, K. He, X. Chen, L. S. Ling, M. L. Tian, L. Li, X. C. Xie, J. P. Liu, H. Yang, Q. K. Xue, J. Wang_*, X. C. Ma_*, Detection of superconducting phase in a two-atom layer of hexagonal Ga film grown on semiconducting GaN(0001). Phys. Rev. Lett. 114, 107003 (2015).

27.C. L. Song, Y. L. Wang, Y. P. Jiang, Z. Li, L. L. Wang, K. He, X. Chen, J. E. Hoffman, X. C. Ma_*, Q. K. Xue_*, Imaging the electron-boson coupling in superconducting FeSe films using a scanning tunneling microscope. Phys. Rev. Lett. 112, 057002 (2014).

28.C. L. Song, Y. L. Wang, Y. P. Jiang, L. L. Wang, K. He, X. Chen, J. E. Hoffman, X. C. Ma_*, Q. K. Xue_*, Suppression of superconductivity by twin boundaries in FeSe. Phys. Rev. Lett. 109, 137004 (2012).

29.C. L. Song, B. Sun, Y. L. Wang, Y. P. Jiang, L. L. Wang, K. He, X. Chen, P. Zhang, X. C. Ma_*, Q. K. Xue_*, Charge-transfer-induced cesium superlattices on graphene. Phys. Rev. Lett. 108, 156803 (2012).

30. Q. Y. Wang, Z. Li, W. H. Zhang, Z. C. Zhang, J. S. Zhang, W. Li, H. Ding, Y. B. Ou, P. Deng, K. Chang, J. Wen, C. L. Song, K. He, J. F. Jia, S. H. Ji, Y. Y. Wang, L. L. Wang, X. Chen, X. C. Ma_*, Q. K. Xue_*, Interface-induced high-temperature superconductivity in single unit-cell FeSe films on SrTiO3. Chin. Phys. Lett. 29, 037402 (2012).

31. Y. P. Jiang, Y. Y. Sun, M. Chen, Y. L. Wang, Z. Li, C. L. Song, K. He, L. L. Wang, X. Chen, Q. K. Xue, X. C. Ma_*, S. B. Zhang_*, Fermi level tuning of epitaxial Sb2Te3 thin films on Graphene by regulating intrinsic defects and substrate transfer doping.  Phys. Rev. Lett. 108, 066809 (2012).

32. Y. P. Jiang, Y. L. Wang, M. Chen, Z. Li, C. L. Song, K. He, L. L. Wang, X. Chen, X. C. Ma_*, Q. K. Xue_*, Landau quantization and the thickness limit of topological insulator thin films of Sb2Te3. Phys. Rev. Lett. 108, 016401 (2012).

33.C. L. Song, Y. L. Wang, Y. P. Jiang, Z. Li, L. L. Wang, K. He, X. Chen, X. C. Ma_*, Q. K. Xue_*, Molecular-beam epitaxy and robust superconductivity of stoichiometric FeSe crystalline films on bilayer graphene. Phys. Rev. B 84, 020503(R) (2011).

34.C. L. Song, Y. L. Wang, P. Cheng, Y. P. Jiang, W. Li, T. Zhang, Z. Li, K. He, L. L. Wang, J. F. Jia, H. H. Hung, C. J. Wu, X. C. Ma_*, X. Chen_*, Q. K. Xue, Direct observation of nodes and twofold symmetry in FeSe superconductor. Science 332, 1410 (2011).

35. C. L. Song, Y. L. Wang, Y. P. Jiang, Y. Zhang, C. Z. Chang, L. L. Wang, K. He, X. Chen, J. F. Jia, Y. Y. Wang, Z. Fang, X. Dai, X. C. Xie, X. L. Qi, S. C. Zhang, Q. K. Xue_*, X. C. Ma, Topological insulator Bi2Se3 thin films grown on double-layer graphene by molecular beam epitaxy. Appl. Phys. Lett. 97, 143118 (2010).

36. P. Cheng, C. L. Song, T. Zhang, Y. Y. Zhang, Y. L. Wang, J. F. Jia, J. Wang, Y. Y. Wang, B. F. Zhu, X. Chen_*, X. C. Ma_*, K. He, L. L. Wang, X. Dai, Z. Fang, X. C. Xie, X. L. Qi, C. X. Liu, S. C. Zhang, Q. K. Xue, Landau quantization of topological surface states in Bi2Se3. Phys. Rev. Lett. 105, 076801 (2010).

37. Y. Zhang, K. He_*, C. Z. Chang, C. L. Song, L. L. Wang, X. Chen, J. F. Jia, Z. Fang, X. Dai, W. Y. Shan, S. Q. Shen, Q. Niu, X. L. Qi, S. C. Zhang, X. C. Ma, Q. K. Xue_*, Crossover of the three-dimensional topological insulator of Bi2Se3 to the two-dimensional limit. Nat. Phys. 6, 584 (2010).

38.C. L. Song, Y. L. Wang, Y. X. Ning, J. F. Jia, X. Chen, B. Sun, P. Zhang, Q. K. Xue, X. C. Ma_*, Tailoring phthalocyanine metalation reaction by quantum size effect. J. Am. Chem. Soc. 97, 1456 (2010).