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

作　　者：张安民 张清明 

机构地区：[1]Department of Physics, Renmin University of China

出　　处：《Chinese Physics B》2013年第8期51-62,共12页中国物理B（英文版）

基　　金：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 scat- tering, 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.Electron-phonon coupling （EPC） in cuprate and iron-based superconducting systems, as revealed by Raman scat- tering, 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 

分 类 号：TM26[一般工业技术—材料科学与工程]