Beijing Academy of Quantum Information Sciences

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Chong Liu
Chong Liu

Associate Research Scientist
Division of Quantum State of Matter
Office: 542
Email: liuchong@baqis.ac.cn

Employment:

  • 2021 to present, Associate Research Scientist. Beijing Academy of Quantum Information Sciences, Beijing, China.

  • 2018 to 2021, Postdoctoral Research Fellow. Quantum Matter Institute, The University of British Columbia, Vancouver, Canada.

 

Education:

  • 2013 to 2018, Ph.D. in Physics. Tsinghua University, Beijing, China

  • 2009 to 2013, Bachelor. University of Science and Technology of China, Hefei, China

 

Chong Liu’s research interest is the preparation, investigation and manipulation of two-dimensional (2D) quantum materials, including unconventional superconducting thin films, 2D ferromagnetic materials and topological materials. The major experimental techniques are molecular beam epitaxy (MBE) and scanning tunneling microscopy (STM), as well as magnetoelectric transport, angle-resolved photoelectron spectroscopy (ARPES), X-ray spectroscopy. As of early 2023, over 30 papers have been published in leading journals such as Nature Communications, Nano Letters, etc., with a total of more than 600 citations and the h-index of 12.


Website: Chong Liu | Semantic Scholar; Chong Liu | ResearchGate




Selected Publications (*Corresponding authors，#Equal contribution)

1. K. Zhu, H. Wang, Y. Zhu, Y. Zang, Y. Feng, B. Tong, D. Zhao, X. Xie, K. Chang, K. He, and C. Liu*. Stoichiometric growth of monolayer FeSe superconducting films using a selenium cracking source. Crystals 12, 853 (2022).

2. C. Liu*, K. Chang, and K. Zou. Realistic simulation of reflection high-energy electron diffraction patterns for two-dimensional lattices using Ewald construction. Journal of Vacuum Science & Technology B 40, 054002 (2022).

3. C. Liu, R. P. Day, F. Li, R. L. Roemer, S. Zhdanovich, S. Gorovikov, T. M. Pedersen, J. Jiang, S. Lee, M. Schneider, D. Wong, P. Dosanjh, F. J. Walker, C. H. Ahn, G. Levy, A. Damascelli, G. A. Sawatzky, and K. Zou. High-order replica bands in monolayer FeSe/SrTiO3 revealed by polarization-dependent photoemission spectroscopy. Nature Communications 12, 4573 (2021).

4. C. Liu#*, H. Shin#, A. Doll, H.-H. Kung, R. P. Day, B. A. Davidson, J. Dreiser, G. Levy, A. Damascelli, C. Piamonteze, and K. Zou*. High-temperature superconductivity and its robustness against magnetic polarization in monolayer FeSe on EuTiO3. npj Quantum Materials 6, 85 (2021).

5. C. Liu and K. Zou. Tuning stoichiometry and its impact on superconductivity of monolayer and multilayer FeSe on SrTiO3. Physical Review B 101, 140502(R) (2020).

6. Y. Liu#, Y. Xu#, J. Sun#, C. Liu#, Y. Liu, C. Wang, Z. Zhang, K. Gu, Y. Tang, C. Ding, H. Liu, H. Yao, X. Lin, L. Wang, Q.-K. Xue, and J. Wang. Type-II Ising superconductivity and anomalous metallic state in macro-size ambient-stable ultrathin crystalline films. Nano Letters 20, 5728 (2020).

7. H. Shin, C. Liu, F. Li, R. Sutarto, B. A. Davidson, and K. Zou. Controlling the electrical and magnetic ground states by doping in the complete phase diagram of titanate Eu1?xLaxTiO3 thin films. Physical Review B 101, 214105 (2020).

8. R. Roemer, C. Liu, and K. Zou. Robust ferromagnetism in wafer-scale monolayer and multilayer Fe3GeTe2. npj 2D Materials and Applications 4, 33 (2020).

9. C. Liu, F. Zheng, L. Shen, M. Liao, R. Wu, G. Gong, C. Ding, H. Yang, W. Li, C.-L. Song, K. He, X.-C. Ma, D. Zhang, L. Yang, P. Zhang, L. Wang, and Q.-K. Xue. Anti-PbO-type CoSe film: a possible analog to FeSe superconductors. Superconductor Science and Technology 31, 115011 (2018).

10. C. Liu, H. Yang, C.-L. Song, W. Li, K. He, X.-C. Ma, L. Wang, and Q.-K. Xue. Observation of tunneling gap in epitaxial ultrathin films of pyrite-type copper disulfide. Chinese Physics Letters 35, 027303 (2018).

11. C. Liu, J. Mao, H. Ding, R. Wu, C. Tang, F. Li, K. He, W. Li, C.-L. Song, X.-C. Ma, Z. Liu, L. Wang, and Q.-K. Xue. Extensive impurity-scattering study on the pairing symmetry of monolayer FeSe films on SrTiO3. Physical Review B 97, 024502 (2018).

12. C. Liu, C.-S. Lian, M.-H. Liao, Y. Wang, Y. Zhong, C. Ding, W. Li, C.-L. Song, K. He, X.-C. Ma, W. Duan, D. Zhang, Y. Xu, L. Wang, and Q.-K. Xue. Two-dimensional superconductivity and topological states in PdTe2 thin films. Physical Review Materials 2, 094001 (2018).

13. L. Shen, C. Liu, F. W. Zheng, X. Xu, Y. J. Chen, S. C. Sun, L. Kang, Z. K. Liu, Q. K. Xue, L. L. Wang, Y. L. Chen, and L. X. Yang. Evolution of electronic structure and electron-phonon coupling in ultrathin tetragonal CoSe films. Physical Review Materials 2, 114005 (2018).

14. G. Zhou#, D. Zhang#, C. Liu#, C. Tang, X. Wang, Z. Li, C. Song, S. Ji, K. He, L. Wang, X. Ma, and Q.-K. Xue. Interface induced high temperature superconductivity in single unit-cell FeSe on SrTiO3(110). Applied Physics Letters 108, 202603 (2016).

15. Z. F. Wang, H. Zhang, D. Liu, C. Liu, C. Tang, C. Song, Y. Zhong, J. Peng, F. Li, C. Nie, L. Wang, X. J. Zhou, X. Ma, Q. K. Xue, and F. Liu. Topological edge states in a high-temperature superconductor FeSe/SrTiO3(001) film. Nature Materials 15, 968 (2016).

16. C. Tang#, C. Liu#, G. Zhou, F. Li, H. Ding, Z. Li, D. Zhang, Z. Li, C. Song, S. Ji, K. He, L. Wang, X. Ma, and Q.-K. Xue. Interface-enhanced electron-phonon coupling and high-temperature superconductivity in potassium-coated ultrathin FeSe films on SrTiO3. Physical Review B 93, 020507(R) (2016).