TAMU Homepage TAMU Libraries Homepage TAMU Digital Library Homepage

Reduced effect of impurities on the universal pairing scale in the cuprates

Show full item record

Title: Reduced effect of impurities on the universal pairing scale in the cuprates
Author: Vorontsov, A. B.; Abanov, Artem; Vavilov, M. G.; Chubukov, A. V.
Abstract: We consider the effect of nonmagnetic impurities on the onset temperature T* for the d-wave pairing in spin-fluctuation scenario for the cuprates. We analyze intermediate coupling regime when the magnetic correlation length xi/a>1 and the dimensionless coupling u is O(1). In the clean limit, T*approximate to 0.02v(f)/a in this parameter range and weakly depends on xi and u. We found numerically that this universal pairing scale is also quite robust with respect to impurities: the scattering rate Gamma(cr) needed to bring T* down to zero is about four times larger than in weak coupling, in good quantitative agreement with experiments. We provide analytical reasoning for this result.
Description: Journals published by the American Physical Society can be found at http://journals.aps.org/
Publisher: American Physical Society
Subject: 2-DIMENSIONAL HUBBARD-MODEL
ANISOTROPIC SUPERCONDUCTORS
STATES
TEMPERATURE
SUPPRESSION
SCATTERING
Physics
Department: Physics and Astronomy
URI: http://dx.doi.org/10.1103/PhysRevB.81.012508
Date: 2010

Citation

A. B. Vorontsov, Artem Abanov, M. G. Vavilov and A. V. Chubukov. Phys.Rev.B 81 012508 2010."Copyright (2010) by the American Physical Society."

Files in this item

Files Size Format View
PhysRevB.81.012508.pdf 119.0Kb PDF View/Open

This item appears in the following Collection(s)

Show full item record