Research progress of topological quantum states in iron-based superconductor

被引：4
作者：
Hao Ning [1 ]
Hu Jiang-Ping [2 ,3 ]
机构：
[1] Chinese Acad Sci, Anhui Prov Key Lab Condensed Matter Phys Extreme, High Magnet Field Lab, Hefei 230031, Anhui, Peoples R China
[2] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
[3] Univ Chinese Acad Sci, Kavli Inst Theoret Sci, Beijing 100190, Peoples R China
来源：
ACTA PHYSICA SINICA | 2018年 / 67卷 / 20期
基金：
中国国家自然科学基金;
关键词：
iron-based superconductor; topological phase transition; topological quantum state; HIGH-TEMPERATURE SUPERCONDUCTIVITY; SINGLE-LAYER FESE; IMPURITY ATOMS; EDGE STATES; NEMATICITY; INSULATOR; ENHANCEMENT; REALIZATION; TRANSITION; INTERPLAY;
D O I：
10.7498/aps.67.20181455
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Iron-based superconductors and topological quantum states have been two important research frontiers in condensed matter physics in recent years. It is a very significant question whether the nontrivial topological phenomena can occur in iron-based superconductors. In this paper, the basic characteristics of the electronic structure of iron-based superconducting are analyzed from three aspects: crystal symmetry, effective model near the high symmetry points in Brillouin zone, and spin-orbit coupling interaction. On this basis, this paper focuses on how the nontrivial topological quantum states occur in the normal state, the states with long-range order near superconducting state and the superconducting state. Furthermore, the relevant theoretical models and results are introduced in detail, the related experimental progress is reviewed, and the development in this field is prospected.
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页数：32
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