Professional Experience

• Oct. 2022–Present Professor, Spin-X Institute & Schools of Physics/Microelectronics, South China University of Technology, China

• Sep. 2019–Aug. 2022 Postdoctoral Research Fellow, Department of Physics, University of Michigan, Ann Arbor, U.S.

• Dec. 2017–Aug. 2019 Visiting Research Assistant, LASSP, Cornell University, Ithaca, NY, U.S.

Education Background

• Aug. 2014–Aug. 2019  Ph. D. in Physics, The Pennsylvania State University, University Park, PA, USA

• Sep. 2012–Jun. 2014  MPhys. in Physics, First-Class Honour, University of Manchester, UK

• Sep. 2009–Jun. 2013  B. S. in Physics, Shandong University, China

• Teaching Courses

  Spring 2025, Electric Circuits

  Fall 2023, College Physics Experiment II

• Research

  Prof. Hongchao Xie explores emergent physical phenomena in two-dimensional (2D)  quantum materials and their potential application in next-generation devices using optical microscopy/spectroscopy and nanoelectromechanical system (NEMS) platform, and has made a list of achievements: 1) experimentally identified signatures of a new magnetic ground state in twist 2D magnets that absent from natural 2D magnets; 2) experimentally observed exchange-driven magnetostriction in 2D antiferromagnets and developed its application in ultra-sensitive detection; 3) experimentally realized the tunable exciton-optomechanical coupling in 2D semiconductor-based resonators; 4) experimentally observed valley-selective exciton bistability and realized its polarization modulation in a suspended 2D semiconductor. 

  Prof. Xie’s work has gained widespread recognition, with publications in high-profile journals such as Nature Physics (2023, 2022), Nature Materials (2020*) and Nano Letters (2021, 2018), where they served as the first author (co-1st author*).

• Research Interests

  Spatially-resolved and temporally-resolved spectroscopy and microscopy for systematical studies on 2D moiré superlattices and devices, and their applications in NEMS, with particular interest in magnetic and correlated electronic quantum states of matter.

Selected Publications

1. H. Xie#, X. Luo#, Z. Ye#, Z. Sun#, G. Ye, S. H. Sung, H. Ge, S. Yan, Y. Fu, S. Tian, H. Lei, K. Sun, R. Hovden, R. He*, L. Zhao*, “Evidence of noncollinear spin texture in magnetic moiré superlattices”. Nature Physics, 19, 1150-1155 (2023).https://doi.org/10.1038/s41567-023-02061-z

1. H. Xie#, X. Luo#, G. Ye#, Z. Ye, H. Ge, S. H. Sung, E. Rennich, Y. Fu, S. Yan, S. Tian, H. Lei, R. Hoven, K. Sun, R. He*, L. Zhao*: “Twist Engineering of the Two-Dimensional Magnetism in Double Bilayer Chromium Triiodide Homostructure”. Nature Physics 18, 30-36 (2022).https://doi.org/10.1038/s41567-021-01408-8

2. H. Xie, S. Jiang, D. A. Rhodes, J. C. Hone, J. Shan*, K. F. Mak*: “Tunable Exciton-Optomechanical Coupling in Suspended Monolayer MoSe2”. Nano Letters, 21, 2538-2543 (2021).https://doi.org/10.1021/acs.nanolett.0c05089

3.  S. Jiang#, H. Xie#, J. Shan*, K. F. Mak*: “Exchange Magnetostriction in Two-Dimensional Antiferromagnets”. Nature Materials, 19, 1295-1299 (2020).https://doi.org/10.1038/s41563-020-0712-x

4. H. Xie, S. Jiang, J. Shan*, K. F. Mak*: “Valley-Selective Exciton Bistability in a Suspended Monolayer Semiconductor”. Nano Letters, 18, 3213-3220 (2018).https://doi.org/10.1021/acs.nanolett.8b00987

• 2014, Homer F. Braddock Graduate Fellowship, The Pennsylvania State University

• 2022, Chinese Government Award for Outstanding Self-Financed Students Abroad

• 2023, Youth Talent Support Program, Guangdong Association for Science and Technology