Superconductivity is a macroscopic quantum phenomenon in which electron pairing(or Cooper pairing)plays a crucial role for its emergence.The Cooper pairing is mediated by electron-phonon interactions in most of simple...
supported by the National Natural Science Foundation of China;the Ministry of Science and Technology of China;the CAS,and some grants from US
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 char...