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Cited by 54Rare-earth and actinide compoundsPhysics of Superconductivity and MagnetismAdvanced Condensed Matter Physics

Quasi-2D Fermi surface in the anomalous superconductor UTe2

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Eaton, A. G., Weinberger, T. I., Popiel, N. J. M., Wu, Z., Hickey, A. J., Cabala, A., Pospíšil, J., Prokleška, J. +11 more·2024·Nature Communications
DOI 10.1038/s41467-023-44110-4PMC PMC10764345
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Abstract

Abstract The heavy fermion paramagnet UTe2exhibits numerous characteristics of spin-triplet superconductivity. Efforts to understand the microscopic details of this exotic superconductivity have been impeded by uncertainty regarding the underlying electronic structure. Here we directly probe the Fermi surface of UTe2by measuring magnetic quantum oscillations in pristine quality crystals. We find an angular profile of quantum oscillatory frequency and amplitude that is characteristic of a quasi-2D Fermi surface, which we find is well described by two cylindrical Fermi sheets of electron- and hole-type respectively. Additionally, we find that both cylindrical Fermi sheets possess considerable undulation but negligible small-scale corrugation, which may allow for their near-nesting and therefore promote magnetic fluctuations that enhance the triplet pairing mechanism. Importantly, we find no evidence for the presence of any 3D Fermi surface sections. Our results place strong constraints on the possible symmetry of the superconducting order parameter in UTe2.

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  • The Fermi surface of UTe2 has three-dimensional characteristics, and the inverse-field periodicity implies a small orbit that has yet to be conclusively demonstrated.

    “However, the Fermi surface has three-dimensional characteristics59–61, and the inverse-field periodicity implies a small orbit that has yet to be conclusively demonstrated.”

    From Orphan high field superconductivity in non-superconducting uranium ditelluride (2024) · cites this paper as [59]

    The Results describe pronounced undulations in UTe2’s Fermi sheets that can explain properties previously taken as evidence of 3D pockets. But the Discussion identifies the Fermi surface as quasi-2D and reports no evidence of 3D sections, so ‘three-dimensional characteristics’ is supported only in the limited sense of strong undulation. The citation is attached to that clause; the small-orbit statement is not attributed to this source. (LLM, conf=0.83)

    Experimental — accuracy not yet measured

  • This stabilization regime would, if accurate, indicate the existence of an even higher field phase beyond SCFP, located at approximately 90 T, and that the quantum limit field has somehow been lowered from the H > 100 T region inferred from recently reported quantum oscillation frequencies.

    “This stabilization regime would, if accurate, indicate the existence of an even higher field phase beyond SCFP, located at approximately 90 T22,62, and moreover that the quantum limit field has somehow been lowered from the H > 100 T region inferred from recently reported59,60 quantum oscillation frequencies.”

    From Orphan high field superconductivity in non-superconducting uranium ditelluride (2024) · cites this paper as [59]

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Cited by

Sorted by citations

Authors
Eaton, A. G., Weinberger, T. I., Popiel, N. J. M., Wu, Z., Hickey, A. J., Cabala, A., Pospíšil, J., Prokleška, J., Haidamak, T., Bastien, G., Opletal, P., Sakai, H., Haga, Y., Nowell, R., Benjamin, S. M., Sechovský, V., Lonzarich, G. G., Grosche, F. M., & Vališka, M.
Affiliations
  • University of Cambridge (GB)
  • Charles University (CZ)
  • Japan Atomic Energy Agency (JP)
  • National High Magnetic Field Laboratory (US)
Corresponding author
Eaton, A. G.
ORCID
Venue
Nature Communications
Publisher
Springer Science and Business Media LLC
Published
2024-01-03
Volume
15
Issue
1
Pages
223-223
ISSN
2041-1723 (ISSN-L)
DOI
10.1038/s41467-023-44110-4
PMC
PMC10764345
OpenAlex
W4390545922
Cited by
54
References
3
Citations by year
2026: 13 · 2025: 22 · 2024: 18 · 2023: 1
FWCI
7.64
Type
journal article
Language
en
Open access
Licence
Locations
  • Nature Communications (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • National Science Foundation (DMR-1,644,779, 1644779)
  • Gordon and Betty Moore Foundation (GBMF5305)
  • Univerzita Karlova v Praze
  • Dell EMC
  • National High Magnetic Field Laboratory (DMR - 1644779, 1644779)
  • Research Councils UK (EP/X011992/1, EP/M506485/1, EP/P024947/1, EP/M000524/1, EP/R513180/1, EP/R00661X/1, EP/T022159/1)
  • European Commission (HORIZON2020, EP/T022159/1, 871106)
  • Grantová Agentura České Republiky (LM2023065, GA22-22322S)
  • Engineering and Physical Sciences Research Council (EP/P024947/1, EP/M000524/1, EP/X011992/1, EP/R00661X/1, EP/T022159/, EP/T022159/1)
  • Science and Technology Facilities Council
  • Japan Society for the Promotion of Science (23H04871, 23K03332, 20KK0061)
  • Japan Atomic Energy Agency
  • Division of Materials Research (1644779, DMR- 1644779)
  • High Magnetic Field Laboratory, Chinese Academy of Sciences
  • State of Florida
Topics
  • Physical Sciences › Physics and Astronomy › Condensed Matter Physics › Rare-earth and actinide compounds
  • Physical Sciences › Physics and Astronomy › Condensed Matter Physics › Physics of Superconductivity and Magnetism
  • Physical Sciences › Physics and Astronomy › Condensed Matter Physics › Advanced Condensed Matter Physics
Keywords
UTe2, heavy fermion, spin-triplet superconductivity, Fermi surface, magnetic quantum oscillations, Fermi surface nesting, magnetic fluctuations, triplet pairing, superconducting order parameter symmetry

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