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Theoretical Study of Dynamical and Electronic Properties of Noncentrosymmetric Superconductor NbReSi

The noncentrosymmetric NbReSi superconductor with [Formula: see text] K is characterized by the relatively large upper critical magnetic field. Its multigap features were observed experimentally. Recent studies suggested the realization of P [Formula: see text] 2m or Ima2 symmetry. We discuss the dy...

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Autores principales: Basak, Surajit, Ptok, Andrzej
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9820956/
https://www.ncbi.nlm.nih.gov/pubmed/36614417
http://dx.doi.org/10.3390/ma16010078
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author Basak, Surajit
Ptok, Andrzej
author_facet Basak, Surajit
Ptok, Andrzej
author_sort Basak, Surajit
collection PubMed
description The noncentrosymmetric NbReSi superconductor with [Formula: see text] K is characterized by the relatively large upper critical magnetic field. Its multigap features were observed experimentally. Recent studies suggested the realization of P [Formula: see text] 2m or Ima2 symmetry. We discuss the dynamical properties of both symmetries (e.g., phonon spectra). In this paper, using the ab initio techniques, we clarify this ambiguity, and conclude that the Ima2 symmetry is unstable, and P [Formula: see text] 2m should be realized. The P [Formula: see text] 2m symmetry is also stable in the presence of external hydrostatic pressure. We show that NbReSi with the P [Formula: see text] 2m symmetry should host phonon surface states for (100) and (110) surfaces. Additionally, we discuss the main electronic properties of the system with the stable symmetry.
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spelling pubmed-98209562023-01-07 Theoretical Study of Dynamical and Electronic Properties of Noncentrosymmetric Superconductor NbReSi Basak, Surajit Ptok, Andrzej Materials (Basel) Article The noncentrosymmetric NbReSi superconductor with [Formula: see text] K is characterized by the relatively large upper critical magnetic field. Its multigap features were observed experimentally. Recent studies suggested the realization of P [Formula: see text] 2m or Ima2 symmetry. We discuss the dynamical properties of both symmetries (e.g., phonon spectra). In this paper, using the ab initio techniques, we clarify this ambiguity, and conclude that the Ima2 symmetry is unstable, and P [Formula: see text] 2m should be realized. The P [Formula: see text] 2m symmetry is also stable in the presence of external hydrostatic pressure. We show that NbReSi with the P [Formula: see text] 2m symmetry should host phonon surface states for (100) and (110) surfaces. Additionally, we discuss the main electronic properties of the system with the stable symmetry. MDPI 2022-12-21 /pmc/articles/PMC9820956/ /pubmed/36614417 http://dx.doi.org/10.3390/ma16010078 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Basak, Surajit
Ptok, Andrzej
Theoretical Study of Dynamical and Electronic Properties of Noncentrosymmetric Superconductor NbReSi
title Theoretical Study of Dynamical and Electronic Properties of Noncentrosymmetric Superconductor NbReSi
title_full Theoretical Study of Dynamical and Electronic Properties of Noncentrosymmetric Superconductor NbReSi
title_fullStr Theoretical Study of Dynamical and Electronic Properties of Noncentrosymmetric Superconductor NbReSi
title_full_unstemmed Theoretical Study of Dynamical and Electronic Properties of Noncentrosymmetric Superconductor NbReSi
title_short Theoretical Study of Dynamical and Electronic Properties of Noncentrosymmetric Superconductor NbReSi
title_sort theoretical study of dynamical and electronic properties of noncentrosymmetric superconductor nbresi
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9820956/
https://www.ncbi.nlm.nih.gov/pubmed/36614417
http://dx.doi.org/10.3390/ma16010078
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