Properties of the superconducting state in compressed Sulphur
Abstract
The thermodynamic properties of the superconducting state in Sulphur under the pressure at 160 GPa were determined. It has been shown that: (i) the critical value of the Coulomb pseudopotential is equal to 0.127; (ii) the critical temperature (T_{C} =17 K) should be calculated by using the modified Allen-Dynes formula; (iii) the effective electron-electron interaction is attractive in the range of frequencies from zero to the frequency slightly lesser than the maximum phonon frequency (~ 0.85\Omega_{max}); (iv) the dimensionless ratios 2\Delta (0)/k_{B}T_{C}, $\Delta C(T_{C})/C^{N}(T_{C}) and T_{C}C^{N}(T_{C})/H^{2}_{C}(0) are equal to 3.7, 1.65 and 0.16 respectively; (v) the ratio of the effective to bare electron mass reaches maximum of 1.77 for T=T_{C}.
Keywords
Cite
@article{arxiv.1105.4947,
title = {Properties of the superconducting state in compressed Sulphur},
author = {A. P. Durajski and R. Szczęśniak and M. W. Jarosik},
journal= {arXiv preprint arXiv:1105.4947},
year = {2016}
}
Comments
3 pages, 5 figures