中国物理B ›› 2015, Vol. 24 ›› Issue (11): 117902-117902.doi: 10.1088/1674-1056/24/11/117902

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

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

In-situ spectroscopic studies and interfacial engineering on FeSe/oxide heterostructures: Insights on the interfacial superconductivity

彭瑞a b, 徐海超a b, 封东来a b   

  1. a State Key Laboratory of Surface Physics, Department of Physics, Fudan University, Shanghai 200433, China;
    b Advanced Materials Laboratory, Fudan University, Shanghai 200433, China
  • 收稿日期:2015-05-07 修回日期:2015-06-26 出版日期:2015-11-05 发布日期:2015-11-05
  • 通讯作者: Xu Hai-Chao E-mail:xuhaichao@fudan.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China and the National Basic Research Program of China (Grant Nos. 2012CB921402, 2011CB921802, and 2011CBA00112).

In-situ spectroscopic studies and interfacial engineering on FeSe/oxide heterostructures: Insights on the interfacial superconductivity

Peng Rui (彭瑞)a b, Xu Hai-Chao (徐海超)a b, Feng Dong-Lai (封东来)a b   

  1. a State Key Laboratory of Surface Physics, Department of Physics, Fudan University, Shanghai 200433, China;
    b Advanced Materials Laboratory, Fudan University, Shanghai 200433, China
  • Received:2015-05-07 Revised:2015-06-26 Online:2015-11-05 Published:2015-11-05
  • Contact: Xu Hai-Chao E-mail:xuhaichao@fudan.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China and the National Basic Research Program of China (Grant Nos. 2012CB921402, 2011CB921802, and 2011CBA00112).

摘要: The discovery of high temperature superconductivity in single-layer FeSe/SrTiO3 provides a new platform for exploring superconductivity and pursuing higher Tc (superconducting transition temperature) through fabricating artificial heterostructures. In this paper, we review the recent progress in studying and tuning the interfacial superconductivity in single-layer FeSe, through the combined in-situ spectroscopic studies and atomic-scale engineering. By fabricating artificial heterostructures, various interfacial factors were tuned, and the corresponding evolutions of electronic structure and superconducting gap behavior were investigated. These studies enrich the current understanding on the interfacial superconductivity, and provide clues for further enhancing Tc through interface engineering.

关键词: single-layer FeSe, high temperature superconductivity, interface, spectroscopic study

Abstract: The discovery of high temperature superconductivity in single-layer FeSe/SrTiO3 provides a new platform for exploring superconductivity and pursuing higher Tc (superconducting transition temperature) through fabricating artificial heterostructures. In this paper, we review the recent progress in studying and tuning the interfacial superconductivity in single-layer FeSe, through the combined in-situ spectroscopic studies and atomic-scale engineering. By fabricating artificial heterostructures, various interfacial factors were tuned, and the corresponding evolutions of electronic structure and superconducting gap behavior were investigated. These studies enrich the current understanding on the interfacial superconductivity, and provide clues for further enhancing Tc through interface engineering.

Key words: single-layer FeSe, high temperature superconductivity, interface, spectroscopic study

中图分类号:  (Photoemission and photoelectron spectra)

  • 79.60.-i
79.60.Jv (Interfaces; heterostructures; nanostructures) 74.70.Xa (Pnictides and chalcogenides) 81.15.Hi (Molecular, atomic, ion, and chemical beam epitaxy)