A study of the thermodynamic superconducting state parameters in selenium under hight pressure

A. P. Durajski, D. Szcześniak, R. Szcześniak

Research output: Contribution to journalArticle

Abstract

The thermodynamic properties of the superconducting state that induces in selenium at the pressure of 100 GPa have been described in the paper. In the framework of the Eliashberg theory values of the energy gap at the temperature of close to zero Kelvin and electron effective mass have been determined. Our study shows that the ratio of the electron effective mass to electron band mass (m*<inf>e</inf>/m<inf>e</inf>) in the entire range of the superconducting state existence takes a high value and its maximum equals 1.505 for T = T<inf>C</inf>. Furthermore, it has been shown that the dimensionless ratio: 2Δ (0) /k<inf>B</inf>T<inf>C</inf> deviates from the predictions of the conventional BCS theory.

Original languageEnglish
Pages (from-to)1071-1075
Number of pages5
JournalJournal of Physical Studies
Volume17
Issue number1
Publication statusPublished - 2013
Externally publishedYes

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Keywords

  • High-pressure effects
  • Superconductors
  • Thermodynamic properties

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Durajski, A. P., Szcześniak, D., & Szcześniak, R. (2013). A study of the thermodynamic superconducting state parameters in selenium under hight pressure. Journal of Physical Studies, 17(1), 1071-1075.