Characterization of novel high-pressure close-packed superconducting phase of boron

D. Szczęs̈niak, R. Szczęs̈niak

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Abstract

We report study on the thermodynamic properties of the novel high-pressure superconducting phase of boron with hexagonal P6<inf>3</inf>/mcm structure. Our analysis is conducted at the pressure of p = 400 GPa, which is motivated by the highest value of the superconducting transition temperature (T<inf>C</inf>) observed previously under such conditions for the P6<inf>3</inf>/mcm boron. Our investigations of the thermodynamic properties are performed within the Eliashberg formalism, due to the strong-coupling character of the considered material. In particular, we calculate the thermodynamic properties of the superconducting state which allows us to determine the values of the characteristic dimensionless parameters; the zero-temperature energy gap to the critical temperature, the ratio of the specific heats, as well as the ratio connected with the zero-temperature thermodynamic critical field.

Original languageEnglish
Pages (from-to)254-256
Number of pages3
JournalActa Physica Polonica A
Volume127
Issue number2
DOIs
Publication statusPublished - 1 Feb 2015
Externally publishedYes

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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