Thermal fluctuation correction to magnetization and specific heat of vortex solids in type-II superconductors

Dingping Li*, Baruch Rosenstein

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

A systematic calculation of magnetization and specific heat contributions due to fluctuations of vortex lattice in strongly type-II superconductors to precision of 1 % is presented. We complete the calculation of the two loop low temperature perturbation theory by including the umklapp processes. Then the Gaussian variational method is adapted to calculation of thermodynamic characteristics of the two-dimensional and the three-dimensional vortex solids in high magnetic field. Based on it as a starting point for a perturbation theory we calculate the leading correction providing simultaneously an estimate of precision. The results are compared to existing nonperturbative approaches.

Original languageEnglish
Article number024514
Pages (from-to)1-11
Number of pages11
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume65
Issue number2
DOIs
StatePublished - 1 Jan 2002

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