Contribution of the Electron-Phonon Coupling to the Pairing Interaction in LiFeAs
Abstract
The coupling strengths for intra- and inter-band electron-phonon pair scattering are calculated for LiFeAs. While the sum of these couplings, which gives the total electron-phonon coupling λ, is of order 0.2, we find that their contribution to the presumed s superconducting state is reduced by approximately an order of magnitude.
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