Superconductivity with a high upper critical field in an equiatomic high-entropy alloy Sc–V–Ti–Hf–Nb
Abstract
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 (Im3m¯). 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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The μ0Hc2(0) exceeding the Pauli paramagnetic limit was also found in BCC-type ScVTiHfNb, HCP-type Ru0.35Os0.35Mo0.12W0.1Zr0.1, A15-type (Nb0.5V0.5)3-xMoxAl0.5Ga0.5, and α-Mn-type Ru0.35Os0.35Mo0.1W0.1Zr0.1 HEA superconductors.
“The μ 0Hc2(0) exceeding the Pauli paramagnetic limit was also found in BCC-type ScVTiHfNb 21 , HCP-type Ru0.35Os0.35Mo0.12W0.1Zr0.1 89 , A15-type (Nb0.5V0.5)3x Mo x Al0.5Ga0.5 57 , and α -Mn-type Ru0.35Os0.35Mo0.1W0.1Zr0.1 HEA superconductors 89 .”
From Recent advances in high-entropy superconductors (2024) · cites this paper as [21]
The Maki parameter αM is 1.05 for the ScVTiHfNb HEA superconductor.
“The Maki parameter α M is 1.05 for the ScVTiHfNb HEA superconductor 21 .”
From Recent advances in high-entropy superconductors (2024) · cites this paper as [21]
Depending on the αM value, pair breaking is due primarily to the Pauli paramagnetic effect, with a small contribution from the orbital limiting effect.
“Depending on the α M value, pair breaking is due primarily to the Pauli paramagnetic effect, with a small contribution from the orbital limiting effect.”
From Recent advances in high-entropy superconductors (2024) · cites this paper as [21]
Cites
Discovery of a Superconducting High-Entropy Alloy
Koželj, P., Vrtnik, S., Jelen, A., Jazbec, S., Jagličić, Z., Maiti, S., Feuerbacher, M., Steurer, W., & Dolinšek, J. (2014) · Physical Review Letters · doi:10.1103/physrevlett.113.107001 · Cited by 552 · see citing works
Empirical Relation between Superconductivity and the Number of Valence Electrons per Atom
Matthias, B. T. (1955) · Physical Review · doi:10.1103/physrev.97.74 · Cited by 370 · see citing works
High-entropy alloy superconductors: Status, opportunities, and challenges
Sun, L., & Cava, R. J. (2019) · Physical Review Materials · doi:10.1103/physrevmaterials.3.090301 · Cited by 213 · see citing works
Superconductivity in a new hexagonal high-entropy alloy
Marik, S., Motla, K., Varghese, M., Sajilesh, K. P., Singh, D., Breard, Y., Boullay, P., & Singh, R. P. (2019) · Physical Review Materials · doi:10.1103/physrevmaterials.3.060602 · Cited by 113 · see citing works
Self-citationCutting Edge of High-Entropy Alloy Superconductors from the Perspective of Materials Research
Kitagawa, J., Hamamoto, S., & Ishizu, N. (2020) · Metals · doi:10.3390/met10081078 · Cited by 109 · see citing works
High-entropy alloy superconductors on an α-Mn lattice
Stolze, K., Cevallos, F. A., Kong, T., & Cava, R. J. (2018) · Journal of Materials Chemistry C · doi:10.1039/c8tc03337d · Cited by 104 · see citing works
von Rohr, F. O., & Cava, R. J. (2018) · Physical Review Materials · doi:10.1103/physrevmaterials.2.034801 · Cited by 85 · see citing works
Superconductivity in equimolar Nb-Re-Hf-Zr-Ti high entropy alloy
Marik, S., Varghese, M., Sajilesh, K. P., Singh, D., & Singh, R. P. (2018) · Journal of Alloys and Compounds · doi:10.1016/j.jallcom.2018.08.039 · Cited by 83 · see citing works
Self-citationSuperconducting properties of new hexagonal and noncentrosymmetric cubic high entropy alloys
Motla, K., Arushi, Jangid, S., Meena, P. K., Kushwaha, R. K., & Singh, R. P. (2023) · Superconductor Science and Technology · doi:10.1088/1361-6668/acfac5 · Cited by 28 · see citing works
Self-citationSuperconductivity in (TaNb)1–<i>x</i>(ZrHfTi)<i>x</i>Moy high-entropy alloy films
Zhang, X., Eklund, P., & Shu, R. (2023) · Applied Physics Letters · doi:10.1063/5.0159276 · Cited by 11 · see citing works
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Recent advances in high-entropy superconductors
Zeng, L., Li, L., Li, K., Chen, R., & Luo, H. (2024) · NPG Asia Materials · doi:10.1038/s41427-024-00579-z · Cited by 38 · see citing works
- Authors
- Jangid, S., Meena, P. K., Kushwaha, R. K., Srivastava, S., Manna, P., Mishra, P., Sharma, S., & Singh, R. P.
- Affiliations
- Indian Institute of Science Education and Research, Bhopal (IN)
- Corresponding author
- Singh, R. P.
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 2024-05-06
- Volume
- 124
- Issue
- 19
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W4396760947
- Cited by
- 27
- References
- 10
- Citations by year
- 2026: 7 · 2025: 17 · 2024: 3
- FWCI
- 3.60
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Applied Physics Letters (publishedVersion)
- Funders
- Science and Engineering Research Board (CRG/2019/001028)
- Topics
- Physical Sciences › Engineering › Mechanical Engineering › High Entropy Alloys Studies
- Physical Sciences › Physics and Astronomy › Condensed Matter Physics › Physics of Superconductivity and Magnetism
- Physical Sciences › Engineering › Biomedical Engineering › Superconducting Materials and Applications
- Keywords
- high-entropy alloys, superconductivity, upper critical field, equiatomic alloys, body-centered cubic lattice, Pauli paramagnetic limit, weak-coupling superconductivity, superconducting gap, low-temperature superconductors, heat capacity, magnetization, electrical transport
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