Abstract
We study a strong-coupling theory beyond the Migdal theorem, considering a spin fluctuation coupling potential within an s-wave symmetry in strongly correlated systems in a pseudogap regime. The influence of vertex effects on both the potential and the solutions of the resulting Eliashberg-like equations is discussed for the different band conditions and coupling strength.
Original language | English |
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Pages (from-to) | 135-140 |
Journal | Europhysics Letters |
Volume | 33 |
Issue number | 2 |
DOIs | |
Publication status | Published - 10 Jan 1996 |