skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Upper critical magnetic field of superconductors with a dielectric gap on the Fermi-surface sections

Abstract

In the framework of the model describing a superconductor with a dielectric gap on the Fermi-surface sections, the equation for the upper critical magnetic field H/sub c//sub 2/(T) in the dirty limit is obtained and solved. It is shown that due to the electron spectrum dielectrization, the quantities H/sub c//sub 2/(0) and (chemically bonddH/sub c//sub 2//dTchemically bond)/sub T //sub = //sub =/ increase and the curvature (d/sup 2/H/sub c2//dT/sup 2/)/sub T //sub = //sub =/ may become positive. These results are in good agreement with experimental data for a number of substances with charge- and spin-density waves, e.g., Chevrel phases, layered transition-metal dichalcogenides, antiferromagnetic organic metals (TMTSF)/sub 2/X, Cr/sub 1-//sub x/Re/sub x/ alloys (where TMTSF is an abbreviation for tetramethyltetraselenafulvalene), and the heavy-fermion superconductor URu/sub 2/Si/sub 2/.

Authors:
;
Publication Date:
Research Org.:
Institute of Physics of the Academy of Sciences of the Ukrainian SSR, Prospekt Nauki 144, 252chemically bond650 Kiev 28, Union of Soviet Socialist Republics
OSTI Identifier:
7185484
Resource Type:
Journal Article
Journal Name:
Phys. Rev. B: Condens. Matter; (United States)
Additional Journal Information:
Journal Volume: 38:1
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; SUPERCONDUCTORS; CRITICAL FIELD; CHALCOGENIDES; ELECTRON SPECTRA; ENERGY GAP; FERMI LEVEL; HAMILTONIANS; NIOBIUM SELENIDES; TEMPERATURE DEPENDENCE; TMTSF; ENERGY LEVELS; HETEROCYCLIC COMPOUNDS; MAGNETIC FIELDS; MATHEMATICAL OPERATORS; NIOBIUM COMPOUNDS; ORGANIC COMPOUNDS; QUANTUM OPERATORS; REFRACTORY METAL COMPOUNDS; SELENIDES; SELENIUM COMPOUNDS; SPECTRA; TRANSITION ELEMENT COMPOUNDS; 656100* - Condensed Matter Physics- Superconductivity

Citation Formats

Gabovich, A M, and Shpigel, A S. Upper critical magnetic field of superconductors with a dielectric gap on the Fermi-surface sections. United States: N. p., 1988. Web. doi:10.1103/PhysRevB.38.297.
Gabovich, A M, & Shpigel, A S. Upper critical magnetic field of superconductors with a dielectric gap on the Fermi-surface sections. United States. doi:10.1103/PhysRevB.38.297.
Gabovich, A M, and Shpigel, A S. Fri . "Upper critical magnetic field of superconductors with a dielectric gap on the Fermi-surface sections". United States. doi:10.1103/PhysRevB.38.297.
@article{osti_7185484,
title = {Upper critical magnetic field of superconductors with a dielectric gap on the Fermi-surface sections},
author = {Gabovich, A M and Shpigel, A S},
abstractNote = {In the framework of the model describing a superconductor with a dielectric gap on the Fermi-surface sections, the equation for the upper critical magnetic field H/sub c//sub 2/(T) in the dirty limit is obtained and solved. It is shown that due to the electron spectrum dielectrization, the quantities H/sub c//sub 2/(0) and (chemically bonddH/sub c//sub 2//dTchemically bond)/sub T //sub = //sub =/ increase and the curvature (d/sup 2/H/sub c2//dT/sup 2/)/sub T //sub = //sub =/ may become positive. These results are in good agreement with experimental data for a number of substances with charge- and spin-density waves, e.g., Chevrel phases, layered transition-metal dichalcogenides, antiferromagnetic organic metals (TMTSF)/sub 2/X, Cr/sub 1-//sub x/Re/sub x/ alloys (where TMTSF is an abbreviation for tetramethyltetraselenafulvalene), and the heavy-fermion superconductor URu/sub 2/Si/sub 2/.},
doi = {10.1103/PhysRevB.38.297},
journal = {Phys. Rev. B: Condens. Matter; (United States)},
number = ,
volume = 38:1,
place = {United States},
year = {1988},
month = {7}
}