中国物理B ›› 2013, Vol. 22 ›› Issue (8): 87103-087103.doi: 10.1088/1674-1056/22/8/087103

所属专题: TOPICAL REVIEW — Iron-based high temperature superconductors

• TOPICAL REVIEW—Iron-based high temperature superconductors • 上一篇    下一篇

Electron-phonon coupling in cuprate and iron-based superconductors revealed by Raman scattering

张安民, 张清明   

  1. Department of Physics, Renmin University of China, Beijing 100872, China
  • 收稿日期:2013-05-16 修回日期:2013-06-18 出版日期:2013-06-27 发布日期:2013-06-27
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant Nos. 2011CBA00112 and 2012CB921701).

Electron-phonon coupling in cuprate and iron-based superconductors revealed by Raman scattering

Zhang An-Min (张安民), Zhang Qing-Ming (张清明)   

  1. Department of Physics, Renmin University of China, Beijing 100872, China
  • Received:2013-05-16 Revised:2013-06-18 Online:2013-06-27 Published:2013-06-27
  • Contact: Zhang Qing-Ming E-mail:qmzhang@ruc.edu.cn
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant Nos. 2011CBA00112 and 2012CB921701).

摘要: Electron-phonon coupling (EPC) in cuprate and iron-based superconducting systems, as revealed by Raman scattering, is briefly reviewed. We introduce how to extract the coupling information through phonon lineshape. Then we discuss the strength of EPC in different high-temperature superconductor (HTSC) systems and possible factors affecting the strength. A comparative study between Raman phonon theories and experiments allows us to gain insight into some crucial electronic properties, especially superconductivity. Finally, we summarize and compare EPC in the two existing HTSC systems, and discuss what role it may play in the HTSC.

关键词: electron-phonon coupling, cuprate and iron-based superconducting systems, Raman scattering, high-temperature superconductor

Abstract: Electron-phonon coupling (EPC) in cuprate and iron-based superconducting systems, as revealed by Raman scattering, is briefly reviewed. We introduce how to extract the coupling information through phonon lineshape. Then we discuss the strength of EPC in different high-temperature superconductor (HTSC) systems and possible factors affecting the strength. A comparative study between Raman phonon theories and experiments allows us to gain insight into some crucial electronic properties, especially superconductivity. Finally, we summarize and compare EPC in the two existing HTSC systems, and discuss what role it may play in the HTSC.

Key words: electron-phonon coupling, cuprate and iron-based superconducting systems, Raman scattering, high-temperature superconductor

中图分类号:  (Polarons and electron-phonon interactions)

  • 71.38.-k
78.30.-j (Infrared and Raman spectra) 74.72.-h (Cuprate superconductors) 74.70.-b (Superconducting materials other than cuprates)