A Majorana-like State Discovered in the Iron-based Superconductor  

出　　处：《Bulletin of the Chinese Academy of Sciences》2015年第3期173-174,共2页中国科学院院刊（英文版）

基　　金：supported by the National Natural Science Foundation of China;the Ministry of Science and Technology of China;the CAS,and some grants from US

摘　　要：In superconductors,fermionic electrons are paired into bosons,and condensed into the ground state.An impurity can break the electron pairs into quasiparticles with energy states inside the superconducting gap.The characteristics of such in-gap states reflect accordingly the properties of the superconducting ground state.A zeroenergy in-gap state is particularly interesting,because itIn superconductors, fermionic electrons are paired into bosons, and condensed into the ground state. An impurity can break the electron pairs into quasiparticles with energy states inside the superconducting gap. The characteristics of such in-gap states reflect accordingly the properties of the superconducting ground state. A zeroenergy in-gap state is particularly interesting, because it can be the consequence of unconventional pairing symmetry or nontrivial topology.

关 键 词：铁基 电子配对 间隙状态 超导能隙 拓扑结构 超导体 费米子 玻色子 

分 类 号：TM26[一般工业技术—材料科学与工程]