Bachelor: Physics Base Class, School of Physics, Nanjing University, July 2013

PhD: Department of Physics, Tsinghua University (Supervisor: Prof. Wang Yayu), July 2019
PhD Dissertation: Transport studies of magnetic order and quantum phase transition in magnetic topological insulators
Joint PhD Training (State-Sponsored): Department of Physics, Massachusetts Institute of Technology (Supervisor: Prof. Joseph G. Checkelsky), November 2016–October 2017

July 2019 to April 2021: Assistant Researcher, Quantum Matter Science Research Division, Beijing Academy of Quantum Information Sciences

April 2021 to April 2022: Assistant Researcher, Quantum Computing Research Division, Beijing Academy of Quantum Information Sciences
April 2022: Associate Professor/Researcher, School of Physics, Renmin University of China

Research objects: Low-dimensional quantum materials, including but not limited to two-dimensional materials, magnetic materials, and topological materials

1. Using quantum transport methods in low-temperature strong magnetic fields to study novel topological quantum states and phase transition behaviors in materials, including the quantum anomalous Hall effect, axion insulators, etc.

2. Exploring the coupling between topological quantum states and degrees of freedom such as dimension, charge, spin, and orbit through the regulation of interfaces, electric fields, and magnetic fields.

3. Developing transport measurement methods under pulsed strong magnetic fields to study the evolution of electronic states under extreme conditions and search for possible new quantum ground states.

4. Developing new single-crystal cleavage and processing technologies to achieve high-quality device fabrication.

I plan to enroll 1-2 master's or doctoral students each year. Undergraduate students are welcome to join (interested students please contact me:liuchang_phy@ruc.edu.cn）

Year 2024

Ø Yaoxin Li, Yongchao Wang, Zichen Lian, Hao Li, Zhiting Gao, Liangcai Xu, Huan Wang, Ruie Lu, Longfei Li, Yang Feng, Jinjiang Zhu, Liangyang Liu, Yongqian Wang, Bohan Fu, Shuai Yang, Luyi Yang, Yihua Wang, Tianlong Xia, Chang Liu, Shuang Jia, Yang Wu, Jinsong Zhang, Yayu Wang, and Chang Liu†. Fabrication-induced even-odd discrepancy of magnetotransport in few-layer MnBi₂Te₄. Nature Communications 2024, 13: 3399.

Year 2023

Ø Zhiting Gao, Minghua Guo, Zichen Lian, Yaoxin Li, Yunhe Bai, Xiao Feng, Ke He, Yayu Wang, Chang Liu† and Jinsong Zhang†. Low-damage photolithography for magnetically doped (Bi,Sb)₂Te₃ quantum anomalous Hall thin films. Chinese Physics B, 2023, 32: 117303. (亮点文章)

Ø Chang Liu†, Yayu Wang. Quantum Transport Phenomena in Magnetic Topological Insulators. Acta Phys. Sin., 2023, 72: 177301 (invited review期刊封面，专题封面)

Ø Yaoxin Li*, Chang Liu* (co-author), Yongchao Wang*, Zicheng Lian, Shuai Li, Hao Li, Yang Wu, Haizhou Lu, Jinsong Zhang and Yayu Wang. Giant Nonlocal Edge Conduction in the Axion Insulator State of MnBi₂Te₄. Science Bulletin, 2023, 68: 1252.

Ø Jianli Luan, Yang Feng, Yuchen Ji, Yuanzhao Li, Hangzhe Li, Zhongkai Liu, Chang Liu, Jinsong Zhang, Xufeng Kou, and Yayu Wang. Controlling the Zero Hall Plateau in a Quantum Anomalous Hall Insulator by In-Plane Magnetic Field. Physical Review Letters, 2023, 130: 186201.

Ø Shuai Li, Tianyu Liu, Chang Liu, Yayu Wang, Haizhou Lu, and Xincheng Xie, Progress on antiferromagnetic topological insulator MnBi₂Te₄. National Science Review, 2023: doi.org/10.1093/nsr/nwac296 (invited review)

Year 2022

Ø Weiyan Lin, Yang Feng, Yongchao Wang, Jinjiang Zhu, Zicheng Lian, Huanyu Zhang, Hao Li, Yang Wu, Chang Liu, Yihua Wang, Jinsong Zhang, Yayu Wang, Chui-Zhen Chen, Xiaodong Zhou and Jian Shen. Direct visualization of edge state in even-layer MnBi₂Te_4­ at zero magnetic field. Nature Communications 2022, 13: 7714.

Ø Weiyan Lin, Yang Feng, Yongchao Wang, Zicheng Lian, Hao Li, Yang Wu, Chang Liu, Yihua Wang, Jinsong Zhang, Yayu Wang, Xiaodong Zhou and Jian Shen. Influences of the dissipative topological edge state on quantized transport in MnBi₂Te_4­. Physical Review B 2022, 105: 165411.    

Ø Chang Liu, Yunyi Zang, Yan Gong, Ke He, Xucun Ma, Qi-Kun Xue and Yayu Wang. Ambi-chiral anomalous Hall effect in magnetically doped topological insulators. SCIENCE CHINA Physics, Mechanics & Astronomy 2022, 65: 266812. (invited article)

Ø Yaoxin Li*, Chang Liu* (co-author), Yongchao Wang*, Hao Li, Yang Wu, Jinsong Zhang and Yayu Wang. Gate-tunable magnetoresistance in 6-suptuple-layer MnBi₂Te₄. Journal of Physics D: Applied Physics 2022, 55: 104001. (invited article)  

Year 2021                                      

Ø Chang Liu, Yongchao Wang, Ming Yang, Jiahao Mao, Hao Li, Yaoxin Li, Jiaheng Li, Haipeng Zhu, Junfeng Wang, Liang Li, Yang Wu, Yong Xu, Jingsong Zhang and Yayu Wang. Magnetic-field-induced robust zero Hall Plateau state in MnBi₂Te₄ Chern insulator. Nature Communications 2021, 12: 4647.

Year 2020

Ø Chang Liu, Yunbo Ou, Yang Feng, Gaoyuan Jiang, Weixiong Wu, Shaorui Li, Zijia Cheng, Ke He, Xucun Ma, Qi-Kun Xue and Yayu Wang. Distinct Quantum Anomalous Hall Ground States Induced by Magnetic Disorders. Physical Review X 2020, 10: 041063.  

Ø Hao Li, Shengsheng Liu, Chang Liu, Jinsong Zhang. Yong Xu, Rong Yu, Yang Wu, Yuegang Zhang and Shoushan Fan. Antiferromagnetic topological insulator MnBi₂Te₄: synthesis and magnetic properties. Phys. Chem. Chem. Phys. 2020, 22: 556-563

Ø Chang Liu, Yongchao Wang, Hao Li, Yang Wu, Yaoxin Li, Jiaheng Li, Ke He, Yong Xu, Jinsong Zhang and Yayu Wang. Robust axion insulator and Chern insulator phases in a two dimensional antiferromagnetic topological insulator. Nature Materials 2020, 19: 522.

Year 2018

Ø Wenbo Wang, Yunbo Ou, Chang Liu, Yayu Wang, Ke He, Qi-Kun Xue and Weida Wu. Direct evidence of ferromagnetism in a quantum anomalous Hall system. Nature Physics 2018, 14: 791.

Ø Yunbo Ou*, Chang Liu* (co-author), Gaoyuan Jiang, Yang Feng, Dongyang Zhao, WeixiongWu, Xiaoxiao Wang, Wei Li, Canli Song, Lili Wang, Wenbo Wang, Weida Wu, Yayu Wang, Ke He, Xucun Ma and Qi-Kun Xue. Enhancing the Quantum Anomalous Hall Effect by Magnetic Codoping in a Topological Insulator. Advanced Materials 2018, 30:1703062.  

Year 2017

Ø Chang Liu, Yunyi Zang, Wei Ruan, Yan Gong, Ke He, Xucun Ma, Qi-Kun Xue and YayuWang. Dimensional Crossover-Induced Topological Hall Effect in a Magnetic Topological Insulator. Physical Review Letters 2017, 119: 176809. (Edistor’s suggestion)

Year 2016

Ø Yunbo Ou*, Chang Liu* (co-author), Liguo Zhang, Yang Feng, Gaoyuan Jiang. DongyangZhao, Yunyi Zang, Qinghua Zhang, Lin Gu, Yayu Wang, Ke He, Xucun Ma and Qi-Kun Xue. Heavily Cr-doped (Bi,Sb)₂Te₃ as a ferromagnetic insulator with electrically tunable conductivity. APL Materials. 2016, 4: 086101.

Ø Minghua Guo, Zhenyu Wang, Yong Xu, Huaqing Huang, Yunyi Zang, Chang Liu, Wenhui Duan, Zhongxue Gan, Shoucheng Zhang, Ke He, Xucun Ma, Qi-Kun Xue and Yayu Wang. Tuning thermoelectricity in a Bi₂Se₃ topological insulator via varied film thickness. New Journal of Physics 2016, 18: 015008.

Ø Xiao Feng, Yang Feng, Jing Wang, Yunbo Ou, Zhenqi Hao, Chang Liu, Zuocheng Zhang, Liguo Zhang, Chaojing Lin, Jian Liao, Yongqing Li, Lili Wang, Shuaihua. Ji, Xi Chen, Xucun Ma, Shoucheng Zhang, Yayu Wang, Ke He and Qi-Kun Xue. Thickness Dependence of the Quantum Anomalous Hall Effect in Magnetic Topological Insulator Films. Advanced Materials. 2016, 28: 6386.

Ø Yunbo Ou, Yang Feng, Xiao Feng, Zhenqi Hao, Liguo Zhang, Chang Liu, Yayu Wang, Ke He, Xucun Ma and Qi-Kun Xue. AlO_x/LiF composite protection layer for Cr-doped (Bi,Sb)₂Te₃ quantum anomalous Hall films. Chinese Physical B 2016, 25: 087307.

Year 2015

Ø Yang Feng, Xiao Feng, Yunbo Ou, Jing Wang, Chang Liu, Liguo Zhang, Dongyang Zhao, Gaoyuan Jiang, Shoucheng Zhang, Ke He, Xucun Ma, Qi-Kun Xue and Yayu Wang. Observation of the Zero Hall Plateau in a Quantum Anomalous Hall Insulator. Physical Review Letters 2015, 115: 126801.

Ø Zuocheng Zhang, Yihua Wang, Qi Song, Chang Liu, Rui Peng, K. A. Moler, Donglai Feng and Yayu Wang. Onset of the Meissner effect at 65 K in FeSe thin film grown on Nb-doped SrTiO₃ substrate. Science Bulletin 2015, 60: 1301-1304.

Ø Zhu Lin, Chenguang Mei, Linlin Wei, Zhangao Sun, Shilong Wu, Haoliang Huang, Shu Zhang, Chang Liu, Yang Feng, Huanfang Tian, Huaixin Yang, Jianqi Li, Yayu Wang, Guangming Zhang, Yalin Lu and Yonggang Zhao. Quasi-two-dimensional superconductivity in FeSe_0.3Te_0.7 thin films and electric-field modulation of superconducting transition. Scientific Reports 2015, 5: 14133.

2021中国新锐科技人物卓越影响奖 (2021)

2020年中国百篇最具影响国际学术论文 (2021)

北京市优秀毕业生 (2019)

清华大学物理系吴有训奖 (2019)

清华大学物理系任之恭奖 (2018)

博士研究生国家奖学金 (2017)

清华大学博士新生奖学金 (2013)