Vertex corrections in antiferromagnetic spin-fluctuation theories

Andrey V. Chubukov; Philippe Monthoux

doi:10.1103/PhysRevB.56.7789

Vertex corrections in antiferromagnetic spin-fluctuation theories

Andrey V. Chubukov, Philippe Monthoux

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

We clarify the physical origin of the discrepancy between recent purely perturbative and self-consistent calculations of the vertex correction in the spin-fermion model for cuprates. We argue that perturbative calculations substantially overestimate the strength of the vertex corrections at moderate couplings.

Original language	English (US)
Pages (from-to)	7789-7792
Number of pages	4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	56
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevB.56.7789
State	Published - 1997

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abstract = "We clarify the physical origin of the discrepancy between recent purely perturbative and self-consistent calculations of the vertex correction in the spin-fermion model for cuprates. We argue that perturbative calculations substantially overestimate the strength of the vertex corrections at moderate couplings.",

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Vertex corrections in antiferromagnetic spin-fluctuation theories

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