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Title: Upper bound on strong-coupling corrections to the second upper critical field

Abstract

An upper bound for the strong-coupling correction eta/sub H//sub >//sub c//sub =/ to the second upper critical magnetic field of an Eliashberg superconductor is established as a function of Coulomb pseudopotential (..mu../sup */) and of impurity content (t/sup +/). Results are also given for many actual superconductors for which the electron-phonon spectral densities are known. These are found to always fall below our upper bound although in some cases they can fall fairly close to the maximum, which varies with ..mu../sup */ and t/sup +/.

Authors:
; ; ;
Publication Date:
Research Org.:
Physics Department, McMaster University, Hamilton, Ontario L8S 4M1, Canada
OSTI Identifier:
7171805
Resource Type:
Journal Article
Journal Name:
Phys. Rev. B: Condens. Matter; (United States)
Additional Journal Information:
Journal Volume: 37:16
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; SUPERCONDUCTORS; CRITICAL FIELD; CORRECTIONS; COULOMB FIELD; GORKOV-ELIASHBERG THEORY; IMPURITIES; LIMITING VALUES; PARAMETRIC ANALYSIS; ELECTRIC FIELDS; MAGNETIC FIELDS; 656100* - Condensed Matter Physics- Superconductivity

Citation Formats

Akis, R, Marsiglio, F, Schachinger, E, and Carbotte, J P. Upper bound on strong-coupling corrections to the second upper critical field. United States: N. p., 1988. Web. doi:10.1103/PhysRevB.37.9318.
Akis, R, Marsiglio, F, Schachinger, E, & Carbotte, J P. Upper bound on strong-coupling corrections to the second upper critical field. United States. https://doi.org/10.1103/PhysRevB.37.9318
Akis, R, Marsiglio, F, Schachinger, E, and Carbotte, J P. Wed . "Upper bound on strong-coupling corrections to the second upper critical field". United States. https://doi.org/10.1103/PhysRevB.37.9318.
@article{osti_7171805,
title = {Upper bound on strong-coupling corrections to the second upper critical field},
author = {Akis, R and Marsiglio, F and Schachinger, E and Carbotte, J P},
abstractNote = {An upper bound for the strong-coupling correction eta/sub H//sub >//sub c//sub =/ to the second upper critical magnetic field of an Eliashberg superconductor is established as a function of Coulomb pseudopotential (..mu../sup */) and of impurity content (t/sup +/). Results are also given for many actual superconductors for which the electron-phonon spectral densities are known. These are found to always fall below our upper bound although in some cases they can fall fairly close to the maximum, which varies with ..mu../sup */ and t/sup +/.},
doi = {10.1103/PhysRevB.37.9318},
url = {https://www.osti.gov/biblio/7171805}, journal = {Phys. Rev. B: Condens. Matter; (United States)},
number = ,
volume = 37:16,
place = {United States},
year = {1988},
month = {6}
}