Critical magnetic field of surface superconductivity in lead

Journal Article · Thu Dec 15 00:00:00 EST 2011 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1134/S1063776111140056· OSTI ID:22027958

Khlyustikov, I. N., E-mail: [e-mail] ^[1]

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1. Russian Academy of Sciences, Kapitza Institute of Physical Problems (Russian Federation)

The critical superconductivity field H{sub c3} is measured on lead single crystals. It is shown that the temperature dependence of H{sub c3}/H{sub c} in the vicinity of superconducting transition temperature T{sub c} is essentially nonlinear. Relative changes in the value of H{sub c3}/H{sub c} reach approximately 30%, which cannot be described by the Ginzburg-Landau theory. The experimental temperature dependences lead to the conclusion that the surface superconducting transition temperature noticeably exceeds the superconducting transition temperature in the bulk of the semiconductor. The differences in the critical temperatures and in the Ginzburg-Landau parameters for lead are estimated.

• OSTI ID: 22027958
• Journal Information: Journal of Experimental and Theoretical Physics, Vol. 113, Issue 6; Other Information: Copyright (c) 2011 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CRITICAL FIELD
CRITICAL TEMPERATURE
GINZBURG-LANDAU THEORY
LEAD
MONOCRYSTALS
NONLINEAR PROBLEMS
SEMICONDUCTOR MATERIALS
SUPERCONDUCTIVITY
SURFACES
TEMPERATURE DEPENDENCE