Strongly correlated and strongly coupled s-wave superconductivity of the high entropy alloy Ta1/6Nb2/6Hf1/6Zr1/6Ti1/6 compound
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The Ta-Hf-Nb-Zr-Ti system has emerged as the most extensively investigated BCC-type HEA superconductor.
“The Ta-Hf-Nb-Zr-Ti system has emerged as the most extensively investigated BCC-type HEA superconductor 9 -17 .”
From Recent advances in high-entropy superconductors (2024) · cites this paper as [12]
The Nb content in BCC-type HEAs is typically 25% or higher when the Tc is > 7 K.
“The Nb content in BCC-type HEAs is typically 25% or higher when the T c is > 7 K 6,9,12,13,23,71 .”
From Recent advances in high-entropy superconductors (2024) · cites this paper as [12]
The superconducting gaps of the BCC-type Nb2/6Ta1/6Hf1/6Zr1/6Ti1/6 and Nb2/5Hf1/5Zr1/5Ti1/5 compounds, as determined by the semiempirical α-model from specific heat measurements, exceeded the BCS weak coupling limit, suggesting that they are strongly coupled superconductors.
“The superconducting gaps of the BCC-type Nb2/6Ta1/6Hf1/6Zr1/ 6 Ti1/6 and Nb2/5Hf1/5Zr1/5Ti1/5 compounds, as determined by the semiempirical α -model from speci fi c heat measurements, exceeded the BCS weak coupling limit, suggesting that they are strongly coupled superconductors 12,13 .”
From Recent advances in high-entropy superconductors (2024) · cites this paper as [12]
The Kadowaki-Woods ratios (A/γ2) of the Nb2/6Ta1/6Hf1/6Zr1/6Ti1/6 and Nb2/5Hf1/5Zr1/5Ti1/5 compounds closely approximate those observed in heavy fermion systems characterized by a significant effective mass.
“The Kadowaki -Woods ratios (A/ γ 2 ) of the Nb2/6Ta1/6Hf1/6Zr1/6Ti1/6 and Nb2/5Hf1/5Zr1/5Ti1/5 compounds closely approximate those observed in heavy fermion systems characterized by a signi fi cant effective mass.”
From Recent advances in high-entropy superconductors (2024) · cites this paper as [12]
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
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
Sc–Zr–Nb–Rh–Pd and Sc–Zr–Nb–Ta–Rh–Pd High-Entropy Alloy Superconductors on a CsCl-Type Lattice
Stolze, K., Tao, J., von Rohr, F. O., Kong, T., & Cava, R. J. (2018) · Chemistry of Materials · doi:10.1021/acs.chemmater.7b04578 · Cited by 122 · 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
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
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Cutting 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
Kim, J. H., Hidayati, R., Jung, S.-G., Salawu, Y. A., Kim, H.-J., Yun, J. H., & Rhyee, J.-S. (2022) · Acta Materialia · doi:10.1016/j.actamat.2022.117971 · Cited by 38 · see citing works
Self-citationRecent 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
Kim, J., Jung, S.-G., Han, Y., Kim, J. H., Rhyee, J.-S., Yeo, S., & Park, T. (2024) · Journal of Materials Science & Technology · doi:10.1016/j.jmst.2023.11.040 · Cited by 29 · 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
Fishtail effect and the vortex phase diagram of high-entropy alloy superconductor
Gao, L., Ying, T., Zhao, Y., Cao, W., Li, C., Xiong, L., Wang, Q., Pei, C., Ge, J.-Y., Hosono, H., et al. (2022) · Applied Physics Letters · doi:10.1063/5.0083365 · Cited by 27 · see citing works
Zeng, L., Hu, X., Zhou, Y., Liu, Y., Boswell, M., Xie, W., Li, K., Li, L., Yu, P., Zhang, C., et al. (2023) · The Innovation Materials · doi:10.59717/j.xinn-mater.2023.100042 · Cited by 14 · see citing works
- Authors
- Kim, G., Lee, M.-H., Yun, J. H., Rawat, P., Jung, S.-G., Choi, W., You, T.-S., Kim, S. J., & Rhyee, J.-S.
- Affiliations
- Kyung Hee University (KR)
- Sungkyunkwan University (KR)
- Chungbuk National University (KR)
- Ewha Womans University (KR)
- Corresponding author
- Rhyee, Jong-Soo
- Venue
- Acta Materialia
- Publisher
- Elsevier BV
- Published
- 2020-03
- Volume
- 186
- Pages
- 250-256
- ISSN
- 1359-6454 (ISSN-L)
- OpenAlex
- W3000078592
- Cited by
- 79
- References
- 7
- Citations by year
- 2026: 15 · 2025: 23 · 2024: 16 · 2023: 11 · 2022: 7 · 2021: 2 · 2020: 5
- FWCI
- 6.13
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Acta Materialia (publishedVersion)
- Funders
- National Research Foundation of Korea (2019H1D3A1A01070741, 2015R1A5A1036133)
- Topics
- Physical Sciences › Physics and Astronomy › Condensed Matter Physics › Physics of Superconductivity and Magnetism
- Physical Sciences › Physics and Astronomy › Condensed Matter Physics › Rare-earth and actinide compounds
- Physical Sciences › Engineering › Mechanical Engineering › High Entropy Alloys Studies
- Keywords
- high-entropy alloys, s-wave superconductivity, electron-phonon coupling, Kadowaki-Woods ratio, flux pinning, critical current density, upper critical field, specific heat jump, body-centered cubic lattice
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