18. Y. L. Wang, Y. P. Jiang, M. Chen, Z. Li, C. L. Song, L. L. Wang, K. He, X. Chen, X. C. Ma and Q. K. Xue, "Scanning tunneling microscopy of interface properties of Bi2Se3 on FeSe", J. Phys.: Condens. Matter 24, 475604 (2012)

17. P. Cheng, T. Zhang, M. He, X. Chen, X. C. Ma and Q. K. Xue, "Scanning tunneling microscopy studies of topological insulators", Physica E 44, 912 (2012)

16. C. L. Song, Y. P. Jiang, Y. L. Wang, Z. Li, L. Wang, K. He, X. Chen, X. C. Ma and Q. K. Xue, "Gating the charge state of single Fe dopants in the topological insulator Bi2Se3 with a scanning tunneling microscope", Phys. Rev. B 86, 045441 (2012)

15. C. L. Song, Y. L. Wang, Y. P. Jiang, L. L. Wang, K. He, X. Chen, J. E. Hoffman, X. C. Ma, and Q. K. Xue, "Suppression of Superconductivity by Twin Boundaries in FeSe", Phys. Rev. Lett. 109, 137004 (2012)

14. M. Chen, J. P. Peng, H. M. Zhang, L. L. Wang, K. He, X. C. Ma, and Q. K. Xue, "Molecular beam epitaxy of bilayer Bi(111) films on topological insulator Bi2Te3: A scanning tunneling microscopy study", Appl. Phys. Lett. 101, 081603 (2012)

13. W. Li, H. Ding, Z. Li, P. Deng, K. Chang, K. He, S. H. Ji, L. L. Wang, X. C. Ma, J. P. Hu, X. Chen, and Q. K. Xue, "KFe2Se2 is the Parent Compound of K-Doped Iron Selenide Superconductors", Phys. Rev. Lett. 109, 057003 (2012)

12. D. F. Liu, W. H. Zhang, D. X. Mou, J. F. H, Y. B. Ou, Q. Y. Wang, Z. Li, L. L. Wang, L. Zhao, S. L. He, Y. Y. Peng, X. Liu, C. Y. Chen, L. Yu, G. D. Liu, X. L. Dong, J. Zhang, C. T. Chen, Z. Y. Xu, J. P. Hu, X. Chen, X. C. Ma, Q. K. Xue, and X.J. Zhou, "Electronic origin of high-temperature superconductivity in single-layer FeSe superconductor", Nat. Commun. 3, 931 (2012)

11. C. L. Song, B. Sun, Y. L. Wang, Y. P. Jiang, L. L. Wang, K. He, X. Chen, P. Zhang, X. C. Ma, and Q. K. Xue, "Charge-Transfer-Induced Cesium Superlattices on Graphene", Phys. Rev. Lett. 108,156803 (2012)

10. M. X. Wang, C. H. Liu, J. P. Xu, F. Yang, L. Miao, M. Y. Yao, C. L. Gao, C. Y. Shen, X. C. Ma, X. Chen, Z. A. Xu, Y. Liu, S. C. Zhang, D. Qian, J. F. Jia, Q. K. Xue, "The Coexistence of Superconductivity and Topological Order in the Bi2Se3 Thin Films", Science 336, 52 (2012)

9. D. West, Y. Y. Sun, S. B. Zhang, T. Zhang, X. C. Ma, P. Cheng, Y. Y. Zhang, X. Chen, J. F. Jia, and Q. K. Xue, "Identification of magnetic dopants on the surfaces of topological insulators: Experiment and theory for Fe on Bi2Te3(111)", Phys. Rev. B 85, 081305(R) (2012)

8. 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)

7. H. H. Hung, C. L. Song, X. Chen, X. C. Ma, Q. K. Xue, and C. J. Wu, "Anisotropic vortex lattice structures in the FeSe superconductor", Phys. Rev. B 85, 104510 (2012)

6. S. Matsuo, T. Koyama, K. Shimamura, T. Arakawa, Y. Nishihara, D. Chiba, K. Kobayashi, T. Ono, C. Z. Chang, K. He, X. C. Ma, and Q. K. Xue, "Weak antilocalization and conductance fluctuation in a submicrometer-sized wire of epitaxial Bi2Se3", Phys. Rev. B 85, 075440 (2012)

5. W. Li, H. Ding, P. Deng, K. Chang, C. L. Song, K. He, L. L. Wang, X. C. Ma, J. P. Hu, X. Chen, Q. K. Xue, "Phase separation and magnetic order in K-doped iron selenide superconductor", Nat. Phys. 8, 126 (2012)

4. 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, and 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)

3. M. H. Liu, J. S. Zhang, C. Z. Chang, Z. C. Zhang, X. Feng, K. Li, K. He, L. L. Wang, X. Chen, X. Dai, Z. Fang, Q. K. Xue, X. C. Ma, and Y. Y. Wang, "Crossover between Weak Antilocalization andWeak Localization in a Magnetically Doped Topological Insulator", Phys. Rev. Lett. 108, 036805 (2012)

2. Y. P. Jiang, Y. L. Wang, M. Chen, Z. Li, C. Z. Song, K. He, L. L. Wang, X. Chen, X. C. Ma, and Q. K. Xue, "Landau Quantization and the Thickness Limit of Topological Insulator Thin Films of Sb2Te3", Phys. Rev. Lett. 108, 016401 (2012)

1. J. Wang, C. Z. Chang, H. D. Li, K. He, D. M. Zhang, M. Singh, X. C. Ma, N. Samarth, M. H. Xie, Q. K. Xue, and M. H. W. Chan, "Interplay between topological insulators and superconductors", Phys. Rev. B 85, 045415 (2012)