Please use this identifier to cite or link to this item: https://ir.swu.ac.th/jspui/handle/123456789/15377
Title: Ratio 2Δ0/kTc in a van Hove superconductor
Authors: Ratanaburi S.
Udomsamuthirun P.
Yoksan S.
Keywords: Electronic density of states
Fermi level
Integral equations
BCS theory
Van Hove singularity
High temperature superconductors
Issue Date: 1996
Abstract: The influence of logarithmic singularity in the density of states at the Fermi energy on the zero-temperature gap-to-Tc ratio (R) of a high-temperature superconductor is studied within the framework of the BCS theory. An exact gap-ratio integral is derived. The numerical values for R are found to contradict the recent approximate results of Getino et al. [Phys. Rev. B 48, 597 (1993)]. © 1996 Plenum Publishing Corporation.
URI: https://ir.swu.ac.th/jspui/handle/123456789/15377
https://www.scopus.com/inward/record.uri?eid=2-s2.0-0030263033&doi=10.1007%2fBF00723519&partnerID=40&md5=593606a3ee949004abc0ed071d4230fb
ISSN: 8961107
Appears in Collections:Scopus 1983-2021

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