LIU Chang - The Department of Physics at Southern University of Science and Technology

Personal Profile

LIU, Chang, Associate Professor at the Department of Physics, SUSTech. Dr. Liu's research mainly focuses on revealing the novel electronic properties of topologically non-trivial materials, thermoelectric materials, and high temperature superconductors; as well as the exotic electronic behavior in graphene and related structures, using angle resolved photoemission spectroscopy (ARPES), scanning tunneling microscopy (STM) and other spectroscopic techniques. My research group also masters the techniques of material growth such as the flux method, chemical vapor transfer (CVT) and molecular beam epitaxy (MBE). On the field of topologically non-trivial materials, my works presented e.g. a gapless topological surface state in magnetic topological insulators, an exotic surface state in three dimensional Dirac semimetals, and the first example of topological crystalline insulator (TCI). On the field of thermoelectric materials, my works revealed the valence band information on a series of SnSe-based high performance thermoelectric compounds.

Research Areas

Technique of ARPES and Ultrahigh Vacuum
Iron-based High Temperature Superconductors
Exotic Electronic Behavior

Educational Background

2006-2011: PhD in Condensed Matter Physics, Iowa State University (USA)

2003-2006: BS in Department of Physics, Sun Yat-sen University (China)

2001-2003: Department of Urban Planning, Sun Yat-sen University (China)

Professional Experience

2015-Present : Associate Professor, Department of Physics, SUSTC

2014-2015: Assistant Professor, Department of Physics, SUSTC

2011-2014: Postdoctoral Research Associate, Princeton University (USA)

Selected Publication

1. Xiao-Bo Wang*, Xiao-Ming Ma* et al., Topological surface electronic states in candidate nodal-line semimetal CaAgAs. Phys. Rev. B 96, 161112(R) (2017) (Chang Liu as corresponding author)
2. Qiangsheng Lu et al., Unexpected large hole effective masses in SnSe revealed by angle-resolved photoemission spectroscopy. Phys. Rev. Lett. 119, 116401 (2017) (Chang Liu as corresponding author)
3. N. Alidoust, Chang Liu et al., Observation of metallic surface states in the strongly correlated Kitaev-Heisenberg candidate Na2IrO3. Phys. Rev. B 93, 245132 (2016)
4. S. Jiang*, Chang Liu* et al., Structural and magnetic phase transitions in Ca0.73La0.27FeAs2 with electron-overdoped FeAs layers. Phys. Rev. B 93, 054522 (2016)
5. Chang Liu et al., Tunable spin helical Dirac quasiparticles on the surface of three-dimensional HgTe. Phys. Rev. B 92, 115436 (2015)
* First author with equal contribution