Low temperature specific heat of the vortex lattice in layered superconductors

L. N. Bulaevskii; M. P. Maley

doi:10.1103/PhysRevLett.71.3541

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Low temperature specific heat of the vortex lattice in layered superconductors

L. N. Bulaevskii, M. P. Maley

DOI 10.1103/PhysRevLett.71.3541 · Physical Review Letters

T1

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Abstract

The contribution of the vortex fluctuations to the specific heat of the vortex lattice, Cv, in a highly anisotropic layered superconductor is calculated for the field B perpendicular to the layers in the interval Hc1≪B≪Hc2. The model of the quantum overdamped oscillator for vortex vibrations is used to describe the dynamics of vortices at low temperatures. The specific heat Cv(T,B) is linear in temperature at low T and increases with field, Cv∝lnB in the case of weak pinning and Cv∝B in the case of strong pinning.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Tl2Ba2CuO6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown