Superconducting electronic specific heat dependence on temperature: Intrinsic origin of the upturn at low T

C. Buzea, T. Yamashita, K. Nakajima, N. Rezlescu, C. Gh Buzea, M. Agop

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The functional dependence of superconducting electronic specific heat on temperature has been derived using the critical field expression obtained by solving the Ginzburg-Landau equation in the elliptic function formalism. At low temperatures the superconducting specific, heat shows an intrinsic upturn. A possible explanation is given. We emphasize the fact that the upturn observed in the specific heat measurements has three main contributions: due to Schottky anomalies under 2 K, due to nuclear coupling under 1 K and an intrinsic contribution to the superconducting state at various temperatures, depending on the magnitude of the linear term of the normal electronic specific heat.

Original languageEnglish
Pages (from-to)465-470
Number of pages6
JournalPhysica Status Solidi (B) Basic Research
Volume201
Issue number2
DOIs
Publication statusPublished - 1997 Jun

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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