Characterization of Novel High-Pressure Close-Packed Superconducting Phase of Boron

• Authors: D. Szczęśniak , R. Szczęśniak
• Languages of publication: EN

Abstracts

EN

We report study on the thermodynamic properties of the novel high-pressure superconducting phase of boron with hexagonal P6₃/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_{C}) observed previously under such conditions for the P6₃/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.

Keywords

EN

74.25.Bt; 74.62.Fj; 74.20.Fg

Discipline

• 74.20.Fg: BCS theory and its development
• 74.62.Fj: Effects of pressure
• 74.25.Bt: Thermodynamic properties

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 127
• Issue: 2
• Pages: 254-256

Dates

published

2015-02

Contributors

author

D. Szczęśniak

• Institute of Physics, Jan Długosz University in Częstochowa, al. Armii Krajowej 13/15, 42-200 Częstochowa, Poland

author

R. Szczęśniak

• Institute of Physics, Częstochowa University of Technology, al. Armii Krajowej 19, 42-200 Częstochowa, Poland

References

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Identifiers

DOI

10.12693/APhysPolA.127.254