Thermodynamic magnetic field and specific heat jump of a bulk superconductor MgB2 using two-band Ginzburg-Landau theory

Temperature dependence of the thermodynamic magnetic field for the superconducting magnesium diboride, MgB2, is studied in the vicinity of Tc using a two-band Ginzburg-Landau (G-L) theory. The results are shown to be in good agreement with calculations from experimental data. In addition, the two-ba...

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Bibliographic Details
Published in:Journal of the Physical Society of Japan 2002-07, Vol.71 (7), p.1637-1639
Main Authors: ASKERZADE, Iman N, GENCER, Ali
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Physics
Properties of type I and type II superconductors
Superconductivity
Thermodynamic properties
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Summary:Temperature dependence of the thermodynamic magnetic field for the superconducting magnesium diboride, MgB2, is studied in the vicinity of Tc using a two-band Ginzburg-Landau (G-L) theory. The results are shown to be in good agreement with calculations from experimental data. In addition, the two-band G-L theory gives a smaller specific heat jump, than a single-band G-L theory.
ISSN:0031-9015
1347-4073
DOI:10.1143/JPSJ.71.1637