Vertex Corrections in the Spin-fluctuation-induced Superconductivity
Takuya Okabe
Abstract
We evaluate vertex corrections to Tc on the basis of the antiferromagnetic spin-fluctuation model of the high-Tc superconductivity. It is found that the corrections are attractive in the dx2-y2 channel, and they become appreciable as we go through an intermediate-coupling regime of Tc 100K, the maximum Tc attainable in the one-loop Éliashberg calculation.
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