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Statistical mechanics of vortex systems in two-dimensional superconductors

V. N. Ryzhov, E. E. Tareyeva

DOI 10.1103/PhysRevB.48.12907 · Physical Review B

T1

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Abstract

The thermodynamics of a two-dimensional vortex plasma in thin-film superconductors is described in the framework of a cycle approximation. The equation for the density of free vortices is obtained from the virial expansion. This equation provides a unified approach to describe both the Kosterlitz-Thouless-like behavior in the vicinity of the characteristic transition temperature TKT and the resistive tail at low temperatures.

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FormulaReported Tc (K)Pressure (GPa)Type
Nb

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3.66Pressure not reportedmidpoint

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