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High critical current density and high-tolerance superconductivity in high-entropy alloy thin films

High-entropy alloy (HEA) superconductors—a new class of functional materials—can be utilized stably under extreme conditions, such as in space environments, owing to their high mechanical hardness and excellent irradiation tolerance. However, the feasibility of practical applications of HEA supercon...

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Autores principales: Jung, Soon-Gil, Han, Yoonseok, Kim, Jin Hee, Hidayati, Rahmatul, Rhyee, Jong-Soo, Lee, Jung Min, Kang, Won Nam, Choi, Woo Seok, Jeon, Hye-Ran, Suk, Jaekwon, Park, Tuson
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9188561/
https://www.ncbi.nlm.nih.gov/pubmed/35690593
http://dx.doi.org/10.1038/s41467-022-30912-5
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author Jung, Soon-Gil
Han, Yoonseok
Kim, Jin Hee
Hidayati, Rahmatul
Rhyee, Jong-Soo
Lee, Jung Min
Kang, Won Nam
Choi, Woo Seok
Jeon, Hye-Ran
Suk, Jaekwon
Park, Tuson
author_facet Jung, Soon-Gil
Han, Yoonseok
Kim, Jin Hee
Hidayati, Rahmatul
Rhyee, Jong-Soo
Lee, Jung Min
Kang, Won Nam
Choi, Woo Seok
Jeon, Hye-Ran
Suk, Jaekwon
Park, Tuson
author_sort Jung, Soon-Gil
collection PubMed
description High-entropy alloy (HEA) superconductors—a new class of functional materials—can be utilized stably under extreme conditions, such as in space environments, owing to their high mechanical hardness and excellent irradiation tolerance. However, the feasibility of practical applications of HEA superconductors has not yet been demonstrated because the critical current density (J(c)) for HEA superconductors has not yet been adequately characterized. Here, we report the fabrication of high-quality superconducting (SC) thin films of Ta–Nb–Hf–Zr–Ti HEAs via a pulsed laser deposition. The thin films exhibit a large J(c) of >1 MA cm(−2) at 4.2 K and are therefore favorable for SC devices as well as large-scale applications. In addition, they show extremely robust superconductivity to irradiation-induced disorder controlled by the dose of Kr-ion irradiation. The superconductivity of the HEA films is more than 1000 times more resistant to displacement damage than that of other promising superconductors with technological applications, such as MgB(2), Nb(3)Sn, Fe-based superconductors, and high-T(c) cuprate superconductors. These results demonstrate that HEA superconductors have considerable potential for use under extreme conditions, such as in aerospace applications, nuclear fusion reactors, and high-field SC magnets.
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spelling pubmed-91885612022-06-13 High critical current density and high-tolerance superconductivity in high-entropy alloy thin films Jung, Soon-Gil Han, Yoonseok Kim, Jin Hee Hidayati, Rahmatul Rhyee, Jong-Soo Lee, Jung Min Kang, Won Nam Choi, Woo Seok Jeon, Hye-Ran Suk, Jaekwon Park, Tuson Nat Commun Article High-entropy alloy (HEA) superconductors—a new class of functional materials—can be utilized stably under extreme conditions, such as in space environments, owing to their high mechanical hardness and excellent irradiation tolerance. However, the feasibility of practical applications of HEA superconductors has not yet been demonstrated because the critical current density (J(c)) for HEA superconductors has not yet been adequately characterized. Here, we report the fabrication of high-quality superconducting (SC) thin films of Ta–Nb–Hf–Zr–Ti HEAs via a pulsed laser deposition. The thin films exhibit a large J(c) of >1 MA cm(−2) at 4.2 K and are therefore favorable for SC devices as well as large-scale applications. In addition, they show extremely robust superconductivity to irradiation-induced disorder controlled by the dose of Kr-ion irradiation. The superconductivity of the HEA films is more than 1000 times more resistant to displacement damage than that of other promising superconductors with technological applications, such as MgB(2), Nb(3)Sn, Fe-based superconductors, and high-T(c) cuprate superconductors. These results demonstrate that HEA superconductors have considerable potential for use under extreme conditions, such as in aerospace applications, nuclear fusion reactors, and high-field SC magnets. Nature Publishing Group UK 2022-06-11 /pmc/articles/PMC9188561/ /pubmed/35690593 http://dx.doi.org/10.1038/s41467-022-30912-5 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/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/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Jung, Soon-Gil
Han, Yoonseok
Kim, Jin Hee
Hidayati, Rahmatul
Rhyee, Jong-Soo
Lee, Jung Min
Kang, Won Nam
Choi, Woo Seok
Jeon, Hye-Ran
Suk, Jaekwon
Park, Tuson
High critical current density and high-tolerance superconductivity in high-entropy alloy thin films
title High critical current density and high-tolerance superconductivity in high-entropy alloy thin films
title_full High critical current density and high-tolerance superconductivity in high-entropy alloy thin films
title_fullStr High critical current density and high-tolerance superconductivity in high-entropy alloy thin films
title_full_unstemmed High critical current density and high-tolerance superconductivity in high-entropy alloy thin films
title_short High critical current density and high-tolerance superconductivity in high-entropy alloy thin films
title_sort high critical current density and high-tolerance superconductivity in high-entropy alloy thin films
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9188561/
https://www.ncbi.nlm.nih.gov/pubmed/35690593
http://dx.doi.org/10.1038/s41467-022-30912-5
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