Umklapp scattering of pairs in BCS superconductivity theory
arXiv:cond-mat/0410638 · doi:10.1088/0953-8984/16/46/016
Abstract
The BCS theory of superconductivity is extended to recognize pairing of electrons by both normal and umklapp scattering. Application of the variational approach shows that coexistence of normal and umklapp scattering frustrates superconductivity.
9 pages, 5 figures. to be published in Journal of Physics: Condensed Matter