Unusual Sulfur Isotope Effect and Extremely High Critical Temperature in HS Superconductor

Overview

Journal Sci Rep

Specialty Science

Date 2018 Apr 18

PMID 29662115

Citations 3

Authors

Radoslaw Szczesniak

Artur P Durajski

Affiliations

Soon will be listed here.

Abstract

Recent experiments have set a new record for the transition temperature at which a material (hydrogen sulfide, HS) becomes superconducting. Moreover, a pronounced isotope shift of T in DS is evidence of an existence of phonon-mediated pairing mechanism of superconductivity that is consistent with the well established Bardeen-Cooper-Schrieffer scenario. Herein, we reported a theoretical studies of the influence of the substitution of S atoms by the heavier isotopes S, S and S on the electronic properties, lattice dynamics and superconducting critical temperature of HS. There are two equally fundamental results presented in this paper. The first one is an anomalous sulfur-derived superconducting isotope effect, which, if observed experimentally, will be subsequent argument that proves to the classical electron-phonon interaction. The second one is fact that critical temperature rise to extremely high value of 242 K for HS at 155 GPa. This result brings us closer to the room temperature superconductivity.

Citing Articles

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