High-entropy alloy (HEA) superconductors have attracted significant attention due to their exceptional low-temperature mechanical and superconducting properties. We report the synthesis and thorough characterization of an equiatomic HEA superconductor with the composition Sc0.20V0.20Ti0.20Hf0.20Nb0.20, crystallizing in a body-centered cubic crystal structure (Im3 ). Our investigation, using magnetization, transport, and heat capacity measurements, reveals the presence of weakly coupled, fully gapped superconductivity with a transition temperature of 4.17(3) K and the upper critical field exceeding the Pauli paramagnetic limit. The metallic nature, combined with a high upper critical field, positions it as a promising candidate for applications in superconducting devices.
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6 May 2024
Research Article|
May 09 2024
Superconductivity with a high upper critical field in an equiatomic high-entropy alloy Sc–V–Ti–Hf–Nb Available to Purchase
S. Jangid
;
S. Jangid
(Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Validation, Visualization, Writing – original draft, Writing – review & editing)
Department of Physics, Indian Institute of Science Education and Research Bhopal
, Bhopal 462066, India
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P. K. Meena
;
P. K. Meena
(Data curation)
Department of Physics, Indian Institute of Science Education and Research Bhopal
, Bhopal 462066, India
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R. K. Kushwaha
;
R. K. Kushwaha
(Data curation)
Department of Physics, Indian Institute of Science Education and Research Bhopal
, Bhopal 462066, India
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S. Srivastava
;
S. Srivastava
(Data curation)
Department of Physics, Indian Institute of Science Education and Research Bhopal
, Bhopal 462066, India
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P. Manna
;
P. Manna
(Data curation)
Department of Physics, Indian Institute of Science Education and Research Bhopal
, Bhopal 462066, India
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P. Mishra
;
P. Mishra
(Writing – review & editing)
Department of Physics, Indian Institute of Science Education and Research Bhopal
, Bhopal 462066, India
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S. Sharma
;
S. Sharma
(Writing – review & editing)
Department of Physics, Indian Institute of Science Education and Research Bhopal
, Bhopal 462066, India
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R. P. Singh
R. P. Singh
a)
(Conceptualization, Data curation, Formal analysis, Funding acquisition, Supervision, Writing – original draft, Writing – review & editing)
Department of Physics, Indian Institute of Science Education and Research Bhopal
, Bhopal 462066, India
a)Author to whom correspondence should be addressed: [email protected]
Search for other works by this author on:
S. Jangid
Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Validation, Visualization, Writing – original draft, Writing – review & editing
Department of Physics, Indian Institute of Science Education and Research Bhopal
, Bhopal 462066, India
P. K. Meena
Data curation
Department of Physics, Indian Institute of Science Education and Research Bhopal
, Bhopal 462066, India
R. K. Kushwaha
Data curation
Department of Physics, Indian Institute of Science Education and Research Bhopal
, Bhopal 462066, India
S. Srivastava
Data curation
Department of Physics, Indian Institute of Science Education and Research Bhopal
, Bhopal 462066, India
P. Manna
Data curation
Department of Physics, Indian Institute of Science Education and Research Bhopal
, Bhopal 462066, India
P. Mishra
Writing – review & editing
Department of Physics, Indian Institute of Science Education and Research Bhopal
, Bhopal 462066, India
S. Sharma
Writing – review & editing
Department of Physics, Indian Institute of Science Education and Research Bhopal
, Bhopal 462066, India
R. P. Singh
Conceptualization, Data curation, Formal analysis, Funding acquisition, Supervision, Writing – original draft, Writing – review & editing
a)
Department of Physics, Indian Institute of Science Education and Research Bhopal
, Bhopal 462066, India
a)Author to whom correspondence should be addressed: [email protected]
Appl. Phys. Lett. 124, 192602 (2024)
Article history
Received:
January 29 2024
Accepted:
April 26 2024
Citation
S. Jangid, P. K. Meena, R. K. Kushwaha, S. Srivastava, P. Manna, P. Mishra, S. Sharma, R. P. Singh; Superconductivity with a high upper critical field in an equiatomic high-entropy alloy Sc–V–Ti–Hf–Nb. Appl. Phys. Lett. 6 May 2024; 124 (19): 192602. https://doi.org/10.1063/5.0200805
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