Faculty

Professor

Department of Physics, Tsinghua University

Phone：+8610-62795618

Fax：+8610-62781604

Email: xc@tsinghua.edu.cn

Ph.D., 2004, Cornell University

M. S., 1996, Tsinghua University

Education: B.S., 1993, Tsinghua University

Assistant professor (2006-present), Department of Physics, Tsinghua University

Postdoctoral associate (2004-2006), University of California, Irvine

Low temperature scanning tunneling microcopy Quantum effects in low-dimensional materials

Molecular electronics

C. H. Yan, J. W. Liu, Y. Y. Zhang, J. F. Wang, Z. Y. Wang, P. Wang, Z. D. Zhang, L. L. Wang, X. C. Ma, S. H. Ji, K. He, L. Fu, W. H. Duan, Q. K. Xue, and X. Chen, “Experimental observation of Dirac-like surface states and topological phase transition in Pb1xSnxTe(111) films", Phys. Rev. Lett. 112, 186801 (2014）.

E. Y. Wang, H. Ding, A. V. Fedorov, W. Yao, Z. Li, Y. F. Lv, K. Zhao, L. G. Zhang, Z. J. Xu, J. Schneeloch, R. D. Zhong, S. H. Ji, L. L. Wang, K. He, X. C. Ma, G. D. Gu, H. Yao, Q. K. Xue, X. Chen, and S. Y. Zhou, "Fully gapped topological surface states in Bi2Se3 films induced by a d-wave high-temperature superconductor", Nat. Phys.9, 621 (2013).

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).

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

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, and Q. K. Xue, “Direct observation of nodes and twofold symmetry in FeSe superconductor”, Science 332, 1410 (2011).

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, and Q. K. Xue, “Landau quantization of topological surface states in Bi2Se3”, Phys. Rev. Lett.105, 076801 (2010).

T. Zhang, P. Cheng, W. J. Li, Y. J. Sun, G. Wang, X. G. Zhu, K. He, L. L. Wang, X. C. Ma, X. Chen, Y. Y. Wang, Y. Liu, H. Q. Lin, J. F. Jia, and Q. K. Xue, “Superconductivity in one-atomic-layer metal films grown on Si (111)”, Nat. Phys.6, 104 (2010).

T. Zhang, P. Cheng, X. Chen, J. F. Jia, X. C. Ma, K. He, L. L. Wang, H. J. Zhang, X. Dai, Z. Fang, X. C. Xie, and Q. K. Xue, “Experimental demonstration of topological surface states protected by time-reversal symmetry”, Phys. Rev. Lett.103, 266803 (2009).

Y. S. Fu, T. Zhang, S. H. Ji, X. Chen, X. C. Ma, J. F. Jia, and Q. K. Xue, “Identifying charge states of molecules with spin-flip Spectroscopy”, Phys. Rev. Lett.103, 257202 (2009).

X. Chen, Y. S. Fu, S. H. Ji, T. Zhang, P. Cheng, X. C. Ma, X. L. Zou, W. H. Duan, J. F. Jia, and Q. K. Xue, “Probing superexchange interaction in molecular magnets by spin-flip spectroscopy and microscopy”, Phys. Rev. Lett.101, 197208 (2008).

S. H. Ji, T. Zhang, Y. S. Fu, X. Chen, X. C. Ma, J. Li, W. H. Duan, J. F. Jia, and Q. K. Xue, “High-resolution tunneling spectroscopy of magnetic impurity induced bound states in the superconducting gap of Pb thin films”, Phys. Rev. Lett.100, 226801 (2008).

Y. S. Fu, S. H. Ji, X. Chen, X. C. Ma, R. Wu, C. C. Wang, W. H. Duan, X. H. Qiu, B. Sun, P. Zhang, J. F. Jia, and Q. K. Xue, “Manipulating the Kondo resonance through quantum size effects”, Phys. Rev. Lett.99, 256601 (2007).