中国物理B ›› 2015, Vol. 24 ›› Issue (11): 117402-117402.doi: 10.1088/1674-1056/24/11/117402

所属专题: TOPICAL REVIEW — Interface-induced high temperature superconductivity

• TOPICAL REVIEW—Interface-induced high temperature superconductivity • 上一篇    下一篇

First-principles study of FeSe epitaxial films on SrTiO3

刘凯a, 高淼b, 卢仲毅a, 向涛b   

  1. a Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials & Micro-nano Devices, Renmin University of China, Beijing 100872, China;
    b Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • 收稿日期:2015-07-30 修回日期:2015-09-02 出版日期:2015-11-05 发布日期:2015-11-05
  • 通讯作者: Lu Zhong-Yi, Xiang Tao E-mail:zlu@ruc.edu.cn;txiang@iphy.ac.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11190024 and 11404383), the National Basic Research Program of China (Grant No. 2011CBA00112), the Fundamental Research Funds for the Central Universities, China, and the Research Funds of Renmin University of China (Grant No. 14XNLQ03).

First-principles study of FeSe epitaxial films on SrTiO3

Liu Kai (刘凯)a, Gao Miao (高淼)b, Lu Zhong-Yi (卢仲毅)a, Xiang Tao (向涛)b   

  1. a Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials & Micro-nano Devices, Renmin University of China, Beijing 100872, China;
    b Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2015-07-30 Revised:2015-09-02 Online:2015-11-05 Published:2015-11-05
  • Contact: Lu Zhong-Yi, Xiang Tao E-mail:zlu@ruc.edu.cn;txiang@iphy.ac.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11190024 and 11404383), the National Basic Research Program of China (Grant No. 2011CBA00112), the Fundamental Research Funds for the Central Universities, China, and the Research Funds of Renmin University of China (Grant No. 14XNLQ03).

摘要:

The discovery of high temperature superconductivity in FeSe films on SrTiO3 substrate has inspired great experimental and theoretical interests. First-principles density functional theory calculations, which have played an important role in the study of bulk iron-based superconductors, also participate in the investigation of interfacial superconductivity. In this article, we review the calculation results on the electronic and magnetic structures of FeSe epitaxial films, emphasizing on the interplay between different degrees of freedom, such as charge, spin, and lattice vibrations. Furthermore, the comparison between FeSe monolayer and bilayer films on SrTiO3 is discussed.

关键词: iron-based superconductor, first-principles calculations, epitaxial film

Abstract:

The discovery of high temperature superconductivity in FeSe films on SrTiO3 substrate has inspired great experimental and theoretical interests. First-principles density functional theory calculations, which have played an important role in the study of bulk iron-based superconductors, also participate in the investigation of interfacial superconductivity. In this article, we review the calculation results on the electronic and magnetic structures of FeSe epitaxial films, emphasizing on the interplay between different degrees of freedom, such as charge, spin, and lattice vibrations. Furthermore, the comparison between FeSe monolayer and bilayer films on SrTiO3 is discussed.

Key words: iron-based superconductor, first-principles calculations, epitaxial film

中图分类号:  (Pnictides and chalcogenides)

  • 74.70.Xa
74.78.-w (Superconducting films and low-dimensional structures) 74.20.Pq (Electronic structure calculations)