Cargando…
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...
Autores principales: | , |
---|---|
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 |
_version_ | 1784865583537324032 |
---|---|
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. |
format | Online Article Text |
id | pubmed-9820956 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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 |
work_keys_str_mv | AT basaksurajit theoreticalstudyofdynamicalandelectronicpropertiesofnoncentrosymmetricsuperconductornbresi AT ptokandrzej theoreticalstudyofdynamicalandelectronicpropertiesofnoncentrosymmetricsuperconductornbresi |