Published November 15, 2007 | Version v1
Journal article Metadata-only

Nonlinear Temperature Dependence of Magnetization of Two-Band Superconductors Near Upper Critical Field

Creators

  • 1. Physics Department, Faculty of Sciences, Ankara University, 06100, Tandogan, Ankara (Turkey)
  • 2. Institute of Physics, Azerbaijan National Academy of Sciences, Baku-Az1143 (Azerbaijan)
  • 3. Abdus Salam International Center for Theoretical Physics, Faculty of Sciences, Strada Costeria 11, 34014, Trieste (Italy)

Description

Temperature dependence of the magnetization M(T) of two-band superconductors is studied in the vicinity of upper critical field Hc2 by using a two-band Ginzburg-Landau (GL) theory. It is shown that magnetization M(T) has a nonlinear character due to positive curvature of upper critical field Hc2(T) and temperature dependence of effective Ginzburg-Landau parameter varkappaeff(T). The results are shown to be in qualitative agreement with experimental data for the superconducting magnesium diboride, MgB2.

Availability note (English)

Available from http://dx.doi.org/10.1088/0253-6102/48/5/038

Additional details

Identifiers

DOI
10.1088/0253-6102/48/5/038;

Publishing Information

Journal Title
Communications in Theoretical Physics
Journal Volume
48
Journal Issue
5
Journal Page Range
p. 949-952
ISSN
0253-6102

INIS

Country of Publication
China
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
42056994
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
CRITICAL FIELD; GINZBURG-LANDAU THEORY; MAGNESIUM BORIDES; MAGNETIZATION; NONLINEAR PROBLEMS; SUPERCONDUCTORS; TEMPERATURE DEPENDENCE
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; BORIDES; BORON COMPOUNDS; MAGNESIUM COMPOUNDS; MAGNETIC FIELDS