Bipolaronic Superconductivity Is Back!by Tommy on 31/05/2012
High superconducting critical temperatures depend universally on the electron-phonon interaction strength, C. Gadermaier, V. V. Kabanov, A. S. Alexandrov, L. Stojchevska, T. Mertelj, C. Manzoni, G. Cerullo, N. D. Zhigadlo, J. Karpinski, Y. Q. Cai, X. Yao, Y. Toda, M. Oda, S. Sugai and D. Mihailovic
Here we show that the superconducting critical temperature Tc of pnictides, cuprates, and bismuthates depends universally on the strength of the electron-phonon interaction as measured by the electron energy relaxation rate, showing a characteristic maximum at ~ 15 ps-1, Tc > 130 K.
This dependence demonstrates that the electron-phonon interaction is fundamental for the pairing. Among the many scenarios that have been proposed for the high-Tc mechanism, we find that only bipolaronic pairing is consistent with the experimental results.
It had better be back – I spent a fortune on international mailings twenty years firstname.lastname@example.org