CoChat
Sign Up
Cited by 22Physics of Superconductivity and MagnetismTopological Materials and PhenomenaHigh Entropy Alloys Studies

Superconductivity in the High‐Entropy Ceramics Ti 0.2 Zr 0.2 Nb 0.2 Mo 0.2 Ta 0.2 C x with Possible Nontrivial Band Topology

Open access
Zeng, Lingyong, Hu, Xunwu, Zhou, Yazhou, Boubeche, Mebrouka, Guo, Ruixin, Liu, Yang, Luo, Si‐Chun, Guo, Shu +7 more·2024·Advanced Science
DOI 10.1002/advs.202305054PMC PMC10837384
Open this paper in CoChat — free account

Abstract

Topological superconductors have drawn significant interest from the scientific community due to the accompanying Majorana fermions. Here, the discovery of electronic structure and superconductivity (SC) in high‐entropy ceramics Ti 0.2 Zr 0.2 Nb 0.2 Mo 0.2 Ta 0.2 C x ( x = 1 and 0.8) combined with experiments and first‐principles calculations is reported. The Ti 0.2 Zr 0.2 Nb 0.2 Mo 0.2 Ta 0.2 C x high‐entropy ceramics show bulk type‐II SC with T c ≈ 4.00 K ( x = 1) and 2.65 K ( x = 0.8), respectively. The specific heat jump (∆ C / γT c ) is equal to 1.45 ( x = 1) and 1.52 ( x = 0.8), close to the expected value of 1.43 for the BCS superconductor in the weak coupling limit. The high‐pressure resistance measurements show a robust SC against high physical pressure in Ti 0.2 Zr 0.2 Nb 0.2 Mo 0.2 Ta 0.2 C, with a slight T c variation of 0.3 K within 82.5 GPa. Furthermore, the first‐principles calculations indicate that the Dirac‐like point exists in the electronic band structures of Ti 0.2 Zr 0.2 Nb 0.2 Mo 0.2 Ta 0.2 C, which is potentially a topological superconductor. The Dirac‐like point is mainly contributed by the d orbitals of transition metals M and the p orbitals of C. The high‐entropy ceramics provide an excellent platform for the fabrication of novel quantum devices, and the study may spark significant future physics investigations in this intriguing material.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1002/advs.202305054

Cites

2 of 2 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Topological properties are reported in many high-entropy carbide superconductors.

    “Currently, topological properties are reported in many high-entropy carbide superconductors 44 -46 .”

    From Recent advances in high-entropy superconductors (2024) · cites this paper as [45]

    The Abstract reports superconductivity in two compositions of one high-entropy carbide and a calculated Dirac-like point for the x = 1 composition, making it a potential topological superconductor. It does not establish topological properties in many high-entropy carbide superconductors; the Introduction says those properties remain worth exploring. (LLM, conf=0.88)

    Experimental — accuracy not yet measured

  • Nontrivial electronic bands exist in other high-entropy carbide superconductors, such as Ti0.2Zr0.2Nb0.2Ta0.2Mo0.2C and Ti0.2Nb0.2Ta0.2Mo0.2W0.2C1-xNx (0 ≤ x ≤ 0.45).

    “Nontrivial electronic bands also exist in other high-entropy carbide superconductors, such as Ti0.2Zr0.2Nb0.2Ta0.2Mo0.2C and Ti0.2Nb0.2Ta0.2Mo0.2W0.2C1x N x (0 ≤ x ≤ 0.45) 45,46 .”

    From Recent advances in high-entropy superconductors (2024) · cites this paper as [45]

    The Results and Discussion section (page not provided) reports calculated type-II Dirac-like points in the bands of Ti0.2Zr0.2Nb0.2Mo0.2Ta0.2C, supporting the example attributable to this paper. It calls the material a topological-superconductor candidate, however, rather than establishing nontrivial topology as a confirmed fact. The nitrogen-containing compound appears to be paired with the sentence’s other citation and is not assessed against this source. (LLM, conf=0.86)

    Experimental — accuracy not yet measured

  • The discovered high-entropy carbide superconductors are type II superconductors, with μ0Hc2(0) values between 0.5 and 5 T.

    “The discovered high-entropy carbide superconductors are type II superconductors, with μ 0Hc2(0) values between 0.5 and 5 T.”

    From Recent advances in high-entropy superconductors (2024) · cites this paper as [45]

  • Superconductivity was also observed in the Ti0.2Zr0.2Nb0.2Ta0.2Mo0.2Cx and Ti0.2Nb0.2Ta0.2Mo0.2W0.2C1-xNx systems.

    “Superconductivity was also observed in the Ti0.2Zr0.2Nb0.2Ta0.2Mo0.2C x and Ti0.2Nb0.2Ta0.2Mo0.2W0.2C1x N x systems 45,46 .”

    From Recent advances in high-entropy superconductors (2024) · cites this paper as [45]

  • The specific heat jump value is close to the theoretical BCS value of 1.43.

    “The speci fi c heat jump value is close to the theoretical BCS value of 1.43.”

    From Recent advances in high-entropy superconductors (2024) · cites this paper as [45]

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 58

  1. [1]N. B. Kopnin, M. M. Salomaa, Phys. Rev. B 1991, 44, 9667. 9998953
  2. [2]N. Read, D. Green, Phys. Rev. B 2000, 61, 10267.
  3. [3]J. R. Badger, Y. Quan, M. C. Staab, S. Sumita, A. Rossi, K. P. Devlin, K. Neubauer, D. S. Shulman, J. C. Fettinger, P. Klavins, S. M. Kauzlarich, D. Aoki, I. M. Vishik, W. E. Pickett, V. Taufour, Commun. Phys. 2022, 5, 22.
  4. [4]X.‐L. Qi, S.‐C. Zhang, Rev. Mod. Phys. 2011, 83, 1057.
  5. [5]A. Y. Kitaev, Ann. Phys. 2003, 303, 2.
  6. [6]J.‐P. Xu, M.‐X. Wang, Z. L. Liu, J.‐F. Ge, X. Yang, C. Liu, Z. A Xu, D. Guan, C. L. Gao, D. Qian, Y. Liu, Q.‐H. Wang, F.‐C Zhang, Q.‐K. Xue, J.‐F. Jia, Phys. Rev. Lett. 2015, 114, 017001. 25615497
  7. [7]M.‐X. Wang, C. Liu, J.‐P. Xu, F. Yang, L. Miao, M.‐Y. Yao, C. L. Gao, C. Shen, X. Ma, X. Chen, Z.‐A. Xu, Y. Liu, S.‐C. Zhang, D. Qian, J.‐F. Jia, Q.‐K. Xue, Science 2012, 336, 52. 22422860
  8. [8]Y. S. Hor, A. J. Williams, J. G. Checkelsky, P. Roushan, J. Seo, Q. Xu, H. W. Zandbergen, A. Yazdani, N. P. Ong, R. J. Cava, Phys. Rev. Lett. 2010, 104, 057001. 20366785
  9. [9]P. P. Kong, J. L. Zhang, S. J. Zhang, J. Zhu, Q. Q. Liu, R. C. Yu, Z. Fang, C. Q. Jin, W. G. Yang, X. H. Yu, J. L. Zhu, Y. S. Zhao, J. Phys. Condens. Matter. 2013, 25, 362204. 23945091
  10. [10]X. Zhang, K.‐H. Jin, J. Mao, M. Zhao, Z. Liu, F. Liu, npj Comput Mater. 2021, 7, 44.
  11. [11]L. A Wray, S.‐Y. Xu, Y. Xia, Y. S. Hor, D. Qian, A. V. Fedorov, H. Lin, A. Bansil, R. J. Cava, M. Z Hasan, Nat. Phys. 2010, 6, 855.
  12. [12]G. Du, J. Shao, X. Yang, Z. Du, D. Fang, J. Wang, K. Ran, J. Wen, C. Zhang, H. Yang, Y. Zhang, H.‐H. Wen, Nat. Commun. 2017, 8, 14466. 28198378 PMC5316857
  13. [13]Z. Liu, X. Yao, J. Shao, M. Zuo, L. Pi, S. Tan, C. Zhang, Y. Zhang, J. Am. Chem. Soc. 2015, 137, 10512. 26262431
  14. [14]S. Sasaki, Z. Ren, A. A. Taskin, K. Segawa, L. Fu, Y. Ando, Phys. Rev. Lett. 2012, 109, 217004. 23215610
  15. [15]P. Hosur, X. Dai, Z. Fang, X.‐L. Qi, Phys. Rev. B 2014, 90, 045130.
  16. [16]Z. Chi, X. Chen, C. An, L. Yang, J. Zhao, Z. Feng, Y. Zhou, Y. Zhou, C. Gu, B. Zhang, Y. Yuan, C. Kenney‐Benson, W. Yang, G. Wu, X. Wan, Y. Shi, X. Yang, Z. Yang, npj Quantum Mater. 2018, 3, 28.
  17. [17]S. Zhu, L. Kong, L. Cao, H. Chen, M. Papaj, S. Du, Y. Xing, W. Liu, D. Wang, C. Shen, F. Yang, J. Schneeloch, R. Zhong, G. Gu, L. Fu, Y.‐Y. Zhang, H. Ding, H.‐J. Gao, Science 2020, 367, 189. 31831637
  18. [18]C.‐K. Chiu, T. Machida, Y. Huang, T. Hanaguri, F.‐C. Zhang, Sci. Adv. 2020, 6, eaay0443. 32158938 PMC7048414
  19. [19]G. Xu, B. Lian, P. Tang, X.‐L. Qi, S.‐C. Zhang, Phys. Rev. Lett. 2016, 117, 047001. 27494494
  20. [20]W. Liu, L. Cao, S. Zhu, L. Kong, G. Wang, M. Papaj, P. Zhang, Y.‐B. Liu, H. Chen, G. Li, F. Yang, T. Kondo, S. Du, G.‐H. Cao, S. Shin, L. Fu, Z. Yin, H.‐J. Gao, H. Ding, Nat. Commun. 2020, 11, 5688. 33173056 PMC7655862
  21. [21]L. Kong, L. Cao, S. Zhu, M. Papaj, G. Dai, G. Li, P. Fan, W. Liu, F. Yang, X. Wang, S. Du, C. Jin, L. Fu, H.‐J. Gao, H. Ding, Nat. Commun. 2021, 21, 4146. PMC8260634 34230479
  22. [22]M. Li, G. Li, L. Cao, X. Zhou, X. Wang, C. Jin, C.‐K. Chiu, S. J. Pennycook, Z. Wang, H.‐J. Gao, Nature 2022, 606, 890. 35676489
  23. [23]D. Shen, C. N. Kuo, T. W. Yang, I. N. Chen, C. S. Lue, L. M. Wang, Commun. Mater. 2020, 1, 56.
  24. [24]N. K. Karn, M. M. Sharma, V. P. S. Awana, Supercond. Sci. Tech. 2022, 35, 114002.
  25. [25]F. Martín‐Vega, E. Herrera, B. Wu, V. Barrena, F. Mompeán, M. García‐Hernández, P. C. Canfield, A. M. Black‐Schaffer, J. J. Baldoví, I. Guillamón, H. Suderow, Phys. Rev. Res. 2022, 4, 023241.
  26. [26]C. Q. Xu, B. Li, L. Zhang, J. Pollanen, X. L. Yi, X. Z. Xing, Y. Liu, J. H. Wang, Z. Zhu, Z. X. Shi, X. Xu, X. Ke, Phys. Rev. B 2021, 104, 125127.
  27. [27]M. Kim, C.‐Z. Wang, K.‐M. Ho, Phys. Rev. B 2019, 99, 224506.
  28. [28]L. Han, X. Shi, J. Jiao, Z. Yu, X. Wang, N. Yu, Z. Zou, J. Ma, W. Zhao, W. Xia, Y. Guo, Chinese Phys. Lett. 2022, 39, 067101.
  29. [29]T. Shang, J. Zhao, L.‐H. Hu, J. Ma, D. J. Gawryluk, X. Zhu, H. Zhang, Z. Zhen, B. Yu, Y. Xu, Q. Zhan, E. Pomjakushina, M. Shi, T. Shiroka, Sci. Adv. 2022, 8, eabq6589. 36306356 PMC9616505
  30. [30]T. Shang, J. Z. Zhao, D. J. Gawryluk, M. Shi, M. Medarde, E. Pomjakushina, T. Shiroka, Phys. Rev. B 2020, 101, 214518.
  31. [31]D. Y. Yan, M. Yang, C. X. Wang, P. B. Song, C. J. Yi, Y. G. Shi, Supercond. Sci. Tech. 2021, 34, 035025.
  32. [32]Z. Cui, Y. Qian, W. Zhang, H. Weng, Z. Fang, Chinese Phys. Lett. 2020, 37, 087103.
  33. [33]A. Huang, A. D. Smith, M. Schwinn, Q. Lu, T.‐R. Chang, W. Xie, H.‐T. Jeng, G. Bian, Phys. Rev. Mater. 2018, 2, 054205.
  34. [34]D. Yan, D. Geng, Q. Gao, Z. Cui, C. Yi, Y. Feng, C. Song, H. Luo, M. Yang, M. Arita, S. Kumar, E. F. Schwier, K. Shimada, L. Zhao, K. Wu, H. Weng, L. Chen, X. J. Zhou, Z. Wang, Y. Shi, B. Feng, Phys. Rev. B 2020, 102, 205117.
  35. [35]J.‐W. Yeh, S.‐K. Chen, S.‐J. Lin, J.‐Y. Gan, T.‐S. Chin, T.‐T. Shun, C.‐H. Tsau, S.‐Y. Chang, Adv. Eng. Mater. 2004, 6, 299.
  36. [36]S. Akrami, P. Edalati, M. Fuji, K. Edalati, Mater. Sci. Eng. R: Rep. 2021, 146, 100644.
  37. [37]H. Xiang, Y. Xing, F.‐Z. Dai, H. Wang, L. Su, L. Miao, G. Zhang, Y. Wang, X. Qi, L. Yao, H. Wang, B. Zhao, J. Li, Y. Zhou, J. Adv. Ceram. 2021, 10, 385.
  38. [38]S.‐C. Luo, W.‐M. Guo, K. Plucknett, H.‐T. Lin, J. Am. Ceram. Soc. 2022, 11, 805.
  39. [39]X. Yan, L. Constantin, Y. Lu, J.‐F. Silvain, M. Nastasi, B. Cui, J. Am. Ceram. Soc. 2018, 101, 4486.
  40. [40]P. Sarker, T. Harrington, C. Toher, C. Oses, M. Samiee, J.‐P. Maria, D. W. Brenner, K. S. Vecchio, S. Curtarolo, Nat. Commun. 2018, 9, 4980. 30478375 PMC6255778
  41. [41]F. Von Rohr, M. J. Winiarski, J. Tao, T. Klimczuk, R. J. Cava, Proc. Natl. Acad. Sci. USA 2016, 113, E7144. 27803330 PMC5135312
  42. [42]P. Kozelj, S. Vrtnik, A. Jelen, S. Jazbec, Z. Jaglicic, S. Maiti, M. Feuerbacher, W. Steurer, J. Dolinsek, Phys. Rev. Lett. 2014, 113, 107001. 25238377
  43. [43]R. Prozorov, V. G. Kogan, Phys. Rev. Appl. 2018, 10, 014030.
  44. [44]L. Zeng, Z. Wang, J. Song, G. Lin, R. Guo, S.‐C. Luo, S. Guo, K. Li, P. Yu, C. Zhang, W.‐M. Guo, J. Ma, Y. Hou, H. Luo, Adv. Funct. Mater. 2023, 33, 2301929.
  45. [45]H. Shu, W. Zhong, J. Feng, H. Zhao, F. Hong, B. Yue, (Preprint) arXiv:2307.16438, v1, submitted: Jul 2023. · arXiv
  46. [46]L. Zeng, X. Hu, S. Guo, G. Lin, J. Song, K. Li, Y. He, Y. Huang, C. Zhang, P. Yu, J. Ma, D.‐X. Yao, H. Luo, Phys. Rev. B 2022, 106, 134501.
  47. [47]L. Zeng, X. Hu, N. Wang, J. Sun, P. Yang, M. Boubeche, S. Luo, Y. He, J. Cheng, D.‐X. Yao, H. Luo, J. Phys. Chem. Lett. 2022, 13, 2442. 35263107
  48. [48]P. K. Jha, S. P. Sanyal, Phys. C 1996, 271, 6.
  49. [49]P. K. Jha, S. P. Sanyal, Phys. C 1996, 261, 259.
  50. [50]M. Talati, P. K. Jha, Phys. Rev. B 2006, 74, 134406.
  51. [51]J. Guo, H. Wang, F. Von Rohr, Z. Wang, S. Cai, Y. Zhou, K. Yang, A. Li, S. Jiang, Q. Wu, R. J. Cava, L. Sun, Proc. Natl. Acad. Sci. USA 2017, 114, 13144. 29183981 PMC5740615
  52. [52]S.‐C. Luo, W.‐M. Guo, Z.‐L. Fang, K. Plucknett, H.‐T. Lin, J. Eur. Ceram. Soc. 2022, 42, 336.
  53. [53]H. K. Mao, J. Xu, P. M. Bell, J. Geophys. Res. 1986, 91, 4673.
  54. [54]A. Van De Walle, Calphad 2009, 33, 266.
  55. [55]G. Kresse, J. Hafner, Phys. Rev. B 1993, 47, 558. 10004490
  56. [56]G. Kresse, J. Furthmüller, Phys. Rev. B 1996, 54, 11169. 9984901
  57. [57]J. P. Perdew, K. Burke, M. Ernzerhof, Phys. Rev. Lett. 1997, 78, 1396. 10062328
  58. [58]P. E. Blöchl, Phys. Rev. B 1994, 50, 17953. 9976227

Cited by

Sorted by citations

Authors
Zeng, L., Hu, X., Zhou, Y., Boubeche, M., Guo, R., Liu, Y., Luo, S., Guo, S., Li, K., Yu, P., Zhang, C., Guo, W., Sun, L., Yao, D., & Luo, H.
Affiliations
  • Sun Yat-sen University (CN)
  • Chinese Academy of Sciences (CN)
  • Songshan Lake Materials Laboratory (CN)
  • Southern University of Science and Technology (CN)
  • School of Electromechanical Engineering Guangdong University of Technology Guangzhou 510006 China
  • Guangdong University of Technology (CN)
Corresponding author
  • Sun, Liling
  • Yao, Dao‐Xin
  • Luo, Huixia
ORCID
Venue
Advanced Science
Publisher
Wiley
Published
2023-12-05
Volume
11
Issue
5
Pages
e2305054-e2305054
ISSN
2198-3844 (ISSN-L)
DOI
10.1002/advs.202305054
PMC
PMC10837384
OpenAlex
W4389337861
Cited by
22
References
2
Citations by year
2026: 5 · 2025: 10 · 2024: 5 · 2023: 2
FWCI
2.33
Type
journal article
Language
en
Open access
Licence
Locations
  • Advanced Science (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • arXiv (Cornell University)
Funders
National Natural Science Foundation of China (12274471, 11922415, 92165204, 11974432, 22205091)
Topics
  • Physical Sciences › Physics and Astronomy › Condensed Matter Physics › Physics of Superconductivity and Magnetism
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Topological Materials and Phenomena
  • Physical Sciences › Engineering › Mechanical Engineering › High Entropy Alloys Studies
Keywords
high-entropy ceramics, superconductivity, topological superconductors, Majorana fermions, type-II superconductivity, specific heat jump, high-pressure resistance, electronic band structure, transition metal carbides

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review