Single-gap superconductivity in Mo(8)Ga(41)

In this paper, the potential existence of two-gap superconductivity in Mo(8)Ga(41) is addressed in detail by means of thermodynamic and spectroscopic measurements. A combination of highly sensitive bulk and surface probes, specifically ac-calorimetry and scanning tunneling spectroscopy (STS), are ut...

Descripción completa

Detalles Bibliográficos
Autores principales: Marcin, Miroslav, Kačmarčík, Jozef, Pribulová, Zuzana, Kopčík, Michal, Szabó, Pavol, Šofranko, Ondrej, Samuely, Tomáš, Vaňo, Viliam, Marcenat, Christophe, Verchenko, Valeriy Yu., Shevelkov, Andrei V., Samuely, Peter
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6753155/
https://www.ncbi.nlm.nih.gov/pubmed/31537828
http://dx.doi.org/10.1038/s41598-019-49846-y
_version_ 1783452839919484928
author Marcin, Miroslav
Kačmarčík, Jozef
Pribulová, Zuzana
Kopčík, Michal
Szabó, Pavol
Šofranko, Ondrej
Samuely, Tomáš
Vaňo, Viliam
Marcenat, Christophe
Verchenko, Valeriy Yu.
Shevelkov, Andrei V.
Samuely, Peter
author_facet Marcin, Miroslav
Kačmarčík, Jozef
Pribulová, Zuzana
Kopčík, Michal
Szabó, Pavol
Šofranko, Ondrej
Samuely, Tomáš
Vaňo, Viliam
Marcenat, Christophe
Verchenko, Valeriy Yu.
Shevelkov, Andrei V.
Samuely, Peter
author_sort Marcin, Miroslav
collection PubMed
description In this paper, the potential existence of two-gap superconductivity in Mo(8)Ga(41) is addressed in detail by means of thermodynamic and spectroscopic measurements. A combination of highly sensitive bulk and surface probes, specifically ac-calorimetry and scanning tunneling spectroscopy (STS), are utilized on the same piece of crystal and reveal the presence of only one intrinsic gap in the system featuring strong electron-phonon coupling. Minute traces of additional superconducting phases detected by STS and also in the heat capacity measured in high magnetic fields on a high-quality and seemingly single-phase crystal might mimic the multigap superconductivity of Mo(8)Ga(41) suggested recently in several studies.
format Online
Article
Text
id pubmed-6753155
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-67531552019-10-01 Single-gap superconductivity in Mo(8)Ga(41) Marcin, Miroslav Kačmarčík, Jozef Pribulová, Zuzana Kopčík, Michal Szabó, Pavol Šofranko, Ondrej Samuely, Tomáš Vaňo, Viliam Marcenat, Christophe Verchenko, Valeriy Yu. Shevelkov, Andrei V. Samuely, Peter Sci Rep Article In this paper, the potential existence of two-gap superconductivity in Mo(8)Ga(41) is addressed in detail by means of thermodynamic and spectroscopic measurements. A combination of highly sensitive bulk and surface probes, specifically ac-calorimetry and scanning tunneling spectroscopy (STS), are utilized on the same piece of crystal and reveal the presence of only one intrinsic gap in the system featuring strong electron-phonon coupling. Minute traces of additional superconducting phases detected by STS and also in the heat capacity measured in high magnetic fields on a high-quality and seemingly single-phase crystal might mimic the multigap superconductivity of Mo(8)Ga(41) suggested recently in several studies. Nature Publishing Group UK 2019-09-19 /pmc/articles/PMC6753155/ /pubmed/31537828 http://dx.doi.org/10.1038/s41598-019-49846-y Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Marcin, Miroslav
Kačmarčík, Jozef
Pribulová, Zuzana
Kopčík, Michal
Szabó, Pavol
Šofranko, Ondrej
Samuely, Tomáš
Vaňo, Viliam
Marcenat, Christophe
Verchenko, Valeriy Yu.
Shevelkov, Andrei V.
Samuely, Peter
Single-gap superconductivity in Mo(8)Ga(41)
title Single-gap superconductivity in Mo(8)Ga(41)
title_full Single-gap superconductivity in Mo(8)Ga(41)
title_fullStr Single-gap superconductivity in Mo(8)Ga(41)
title_full_unstemmed Single-gap superconductivity in Mo(8)Ga(41)
title_short Single-gap superconductivity in Mo(8)Ga(41)
title_sort single-gap superconductivity in mo(8)ga(41)
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6753155/
https://www.ncbi.nlm.nih.gov/pubmed/31537828
http://dx.doi.org/10.1038/s41598-019-49846-y
work_keys_str_mv AT marcinmiroslav singlegapsuperconductivityinmo8ga41
AT kacmarcikjozef singlegapsuperconductivityinmo8ga41
AT pribulovazuzana singlegapsuperconductivityinmo8ga41
AT kopcikmichal singlegapsuperconductivityinmo8ga41
AT szabopavol singlegapsuperconductivityinmo8ga41
AT sofrankoondrej singlegapsuperconductivityinmo8ga41
AT samuelytomas singlegapsuperconductivityinmo8ga41
AT vanoviliam singlegapsuperconductivityinmo8ga41
AT marcenatchristophe singlegapsuperconductivityinmo8ga41
AT verchenkovaleriyyu singlegapsuperconductivityinmo8ga41
AT shevelkovandreiv singlegapsuperconductivityinmo8ga41
AT samuelypeter singlegapsuperconductivityinmo8ga41

Ejemplares similares