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arXiv · 1601.01531

The isotope effect in H$\rm_{3}$S superconductor

R. Szczesniak·A. P. Durajski
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Abstract

The experimental value of ${\rm H_{3}S}$ isotope coefficient decreases from $2.37$ to $0.31$ in the pressure range from $130$ GPa to $200$ GPa. We have shown that the value of $0.31$ is correctly reproduced in the framework of the classical Eliashberg approach. On the other hand, the anomalously large value of the isotope coefficient ($2.37$) may be associated with the strong renormalization of the normal state by the electron density of states.

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R. Szczesniak, A. P. Durajski. 2016-01-07. The isotope effect in H$\rm_{3}$S superconductor. https://doi.org/10.1016/j.ssc.2016.10.012

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