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凝聚态物性实验
刘易研究员

办公地点:理工楼704

电子邮箱:yiliu@ruc.edu.cn

电  话:010-62517767

传  真:

研究组主页:

教育经历


2009年9月-2013年7月 北京大学物理学院,物理学专业,理学学士

2013年9月-2019年1月 北京大学物理学院量子材料科学中心,凝聚态物理专业,理学博士


2009.9 - 2013.7  School of Physics, Peking University, Bachelor in Physics

2013.9 - 2019.1  International Center for Quantum Materials, Peking University, Ph.D. in Condensed Matter Physics (Advisor: Prof. Jian Wang)


工作经历


20191-20212月 北京大学物理学院,博雅博士后

20213-20219月 中国人民大学物理学系,副研究员

202110-至今 中国人民大学物理学系,研究员


2019.1 - 2021.2  International Center for Quantum Materials, School of Physics, Peking University, Boya Postdoc

2021.3 - 2021.9  Department of Physics, Renmin University Of China, Associate Research Fellow

2021.10 - present  Department of Physics, Renmin University Of China, Research Fellow




研究兴趣


 二维超导体的制备与物性研究,包括高质量晶态超导薄膜的分子束外延生长,二维超导体系的量子相变(超导-绝缘体/金属相变,量子格里菲斯奇异性)、量子振荡、反常金属态、玻色奇异金属态、伊辛超导和拓扑超导等前沿研究方向。二维超导体的制备与物性研究,包括高质量晶态超导薄膜的分子束外延生长,二维超导体系的量子相变(超导-绝缘体/金属相变,量子格里菲斯奇异性)、量子振荡、反常金属态、玻色奇异金属态、伊辛超导和拓扑超导等前沿研究方向。


The fabrication and physical properties of two-dimensional (2D) superconducting systems, including molecular beam epitaxy (MBE) growth of high quality crystalline superconducting thin films, quantum phase transitions in 2D superconducting systems (superconductor-insulator/metal transition, quantum Griffiths singularity), quantum oscillations, anomalous metal, bosonic strange metal, Ising superconductivity and topological superconductivity, etc.

人才培养


拟每年招收硕士或博士研究生1-2,欢迎本科生加入课题组。

 

It is planned to recruit 1 or 2 graduate students every year.

Undergraduate students are welcome to join the research group.

主要工作和成果

1. Yi Liu†, Shichao Qi†, Jingchao Fang, Jian Sun, Chong Liu, Yanzhao Liu, Junjie Qi, Ying Xing, Haiwen Liu*, Xi Lin, Lili Wang, Qi-Kun Xue, X. C. Xie, and Jian Wang*, “Observation of in-plane quantum Griffiths singularity in two-dimensional crystalline superconductors”, Physical Review Letters 127, 137001 (2021).


2. YingXing†, Pu Yang†, Jun Ge†, Jiaojie Yan†, Jiawei Luo, Haoran Ji, Zeyan Yang, Yongjie Li, Zijia Wang, Yanzhao Liu, Feng Yang, Ping Qiu, Chuanying Xi, Mingliang Tian, Yi Liu*, Xi Lin*, and Jian Wang*, “Extrinsic and intrinsic anomalous metallic states in transition metal dichalcogenide Ising superconductors”, Nano Letters 21, 7486-7494 (2021). 


3. Yi Liu†, Yong Xu†, Jian Sun†, Chong Liu†, Yanzhao Liu, Chong Wang, Zetao Zhang, Kaiyuan Gu, Yue Tang, Cui Ding, Haiwen Liu, Hong Yao, Xi Lin*, Lili Wang*, Qi-Kun Xue, Jian Wang*, “Type-II Ising superconductivity and anomalous metallic state in macro-size ambient-stable ultrathin crystalline films”, Nano Letters 20, 5728-5734 (2020) selected for the Editors Choice of Science (Science 369, 388-389 (2020)).


4. Yi Liu†, Yue Tang†, Ziqiao Wang, Chaofei Liu, Cheng Chen, Jian Wang*, “Anomalous linear magnetoresistance in high quality crystalline lead thin films”, Physical Review B 102, 140403(R) (2020).


5. Chaofei Liu, Cheng Chen, Xiaoqiang Liu, Ziqiao Wang, Yi Liu, Shusen Ye, Ziqiang Wang, Jiangping Hu, Jian Wang*, "Zero-energy bound states in the high-temperature superconductors at the two-dimensional limit", Science Advances 6, eaax7547 (2020).


6. Cheng Chen, Kun Jiang, Yi Zhang, Chaofei Liu, Yi Liu, Ziqiang Wang, Jian Wang*, "Atomic line defects and zero-energy end states in monolayer Fe(Te,Se) high-temperature superconductors", Nature Physics 16, 536–540 (2020).


7. Cheng Chen, Chaofei Liu, Yi Liu and Jian Wang*, "Bosonic Mode and Impurity-Scattering in Monolayer Fe(Te,Se) High-Temperature Superconductors", Nano Letters 20, 2056–2061 (2020).


8. Ying Xing, Yongjie Li, Zeyan Yang, Zijia Wang, Pu Yang, Jun Ge, Yanzhao Liu, Yi Liu, Tianchuang Luo, Yue Tang, and Jian Wang*, “Extremely large and anisotropic magnetoresistance in rare-earth tritelluride TbTe3, Journal of Applied Physics 128, 073901 (2020).


9. Xiaowen Han, Yufeng Wu, Hong Xiao, Miao Zhang, Min Gao, Yi Liu, Jian Wang, Tao Hu*, Xiaoming Xie and Zengfeng Di*, "Disorder-induced quantum Griffiths singularity revealed in an artificial 2D superconducting system", Advanced Science 7, 1902849 (2020).


10. Chao Yang†, Yi Liu†, Yang Wang, Liu Feng, Qianmei He, Jian Sun, Yue Tang, Chunchun Wu, Jie Xiong*, Wanli Zhang, Xi Lin, Hong Yao, Haiwen Liu, Gustavo Fernandes, Jimmy Xu, James M. Valles Jr.*, Jian Wang*, Yanrong Li, “Intermediate bosonic metallic state in the superconductor-insulator transition”, Science 366, 1505–1509 (2019) with a perspective paper Science 366, 1450–1451 (2019).


11. Yi Liu†, Ziqiao Wang†, Pujia Shan, Yue Tang, Chaofei Liu, Cheng Chen, Ying Xing, Qingyan Wang, Haiwen Liu*, Xi Lin, X. C. Xie, Jian Wang*, Anomalous quantum Griffiths singularity in ultrathin crystalline lead films, Nature Communications 10, 3633 (2019).


12. Chaofei Liu†, Ziqiao Wang†, Yi Gao†, Xiaoqiang Liu, Yi Liu, Qiang-Hua Wang*, Jian Wang*, "Detection of bosonic mode as a signature of magnetic excitation in one-unit-cell FeSe on SrTiO3", Physical Review Letters 123, 036801 (2019).


13. Chaofei Liu, Ziqiao Wang, Shusen Ye, Cheng Chen, Yi Liu, Qingyan Wang, Qiang-Hua Wang, Jian Wang*, "Detection of bosonic mode as a signature of magnetic excitation in one-unit-cell FeSe on SrTiO3", Nano Letters 19, 3464-3472 (2019).


14. Yi Liu†, Ziqiao Wang†, Xuefeng Zhang, Chaofei Liu, Yongjie Liu, Zhimou Zhou, Junfeng Wang, Qingyan Wang, Yanzhao Liu, Chuanying Xi, Mingliang Tian, Haiwen Liu*, Ji Feng, X.C. Xie, Jian Wang*, Interface-induced Zeeman-protected superconductivity in ultrathin crystalline lead films, Physical Review X 8, 021002 (2018) with a research highlight paper Science Bulletin 63,595-596 (2018).


15. Yanan Li†, Qiangqiang Gu†, Chen Chen†, Jun Zhang, Qin Liu, Xiyao Hu, Jun Liu, Yi Liu, Langsheng Ling, Mingliang Tian, Yong Wang, Nitin Samarth, Shiyan Li, Tong Zhang*, Ji Feng*, Jian Wang*, "Nontrivial superconductivity in topological MoTe2−xSx crystals", PNAS 115, 9503 (2018).


16. Ziqiao Wang, Chaofei Liu, Yi Liu, Jian Wang*, "High-temperature superconductivity in one-unit-cell FeSe film", Journal of Physics: Condensed Matter 29, 153001 (2017).


17. Ying Xing†, Kun Zhao†, Pujia Shan, Feipeng Zheng, Yangwei Zhang, Hai-Long Fu, Yi Liu, Mingliang Tian, Chuanying Xi, Haiwen Liu, Ji Feng, Xi Lin, Shuai-Hua Ji*, Xi Chen, Qi-Kun Xue, Jian Wang*, "Ising Superconductivity and Quantum Phase Transition in Macro-Size Monolayer NbSe2", Nano Letters 17, 6802 (2017).


18. Yanfei Zhao†, Haiwen Liu†, Jiaqiang Yan, Wei An, Jun Liu, Xi Zhang, Huichao Wang, Yi Liu, Hua Jiang, Qing Li, Yong Wang, Xin-Zheng Li, David Mandrus, X. C. Xie, Minghu Pan*, Jian Wang*,  "Anisotropic magnetotransport and exotic longitudinal linear magnetoresistance in WTe2 crystals", Physical Review B 92, 041104(R) (2015).


19. Yi Liu, Zheng Ma, Yan-Fei Zhao, Meenakshi Singh, Jian Wang*, “Transport properties of topological insulators films and nanowires”, Chinese Physics B 22, 067302 (2013).