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High temperature singlet-based magnetism from Hund’s rule correlations

Author

Listed:
  • Lin Miao

    (New York University
    Advanced Light Source, Lawrence Berkeley National Laboratory)

  • Rourav Basak

    (New York University)

  • Sheng Ran

    (National Institute of Standards and Technology)

  • Yishuai Xu

    (New York University)

  • Erica Kotta

    (New York University)

  • Haowei He

    (New York University)

  • Jonathan D. Denlinger

    (Advanced Light Source, Lawrence Berkeley National Laboratory)

  • Yi-De Chuang

    (Advanced Light Source, Lawrence Berkeley National Laboratory)

  • Y. Zhao

    (National Institute of Standards and Technology
    University of Maryland)

  • Z. Xu

    (National Institute of Standards and Technology)

  • J. W. Lynn

    (National Institute of Standards and Technology)

  • J. R. Jeffries

    (Materials Science Division, Lawrence Livermore National Laboratory)

  • S. R. Saha

    (National Institute of Standards and Technology
    University of Maryland)

  • Ioannis Giannakis

    (Binghamton University)

  • Pegor Aynajian

    (Binghamton University)

  • Chang-Jong Kang

    (Rutgers University)

  • Yilin Wang

    (Brookhaven National Laboratory)

  • Gabriel Kotliar

    (Rutgers University)

  • Nicholas P. Butch

    (National Institute of Standards and Technology
    University of Maryland)

  • L. Andrew Wray

    (New York University)

Abstract

Uranium compounds can manifest a wide range of fascinating many-body phenomena, and are often thought to be poised at a crossover between localized and itinerant regimes for 5f electrons. The antiferromagnetic dipnictide USb2 has been of recent interest due to the discovery of rich proximate phase diagrams and unusual quantum coherence phenomena. Here, linear-dichroic X-ray absorption and elastic neutron scattering are used to characterize electronic symmetries on uranium in USb2 and isostructural UBi2. Of these two materials, only USb2 is found to enable strong Hund’s rule alignment of local magnetic degrees of freedom, and to undergo distinctive changes in local atomic multiplet symmetry across the magnetic phase transition. Theoretical analysis reveals that these and other anomalous properties of the material may be understood by attributing it as the first known high temperature realization of a singlet ground state magnet, in which magnetism occurs through a process that resembles exciton condensation.

Suggested Citation

  • Lin Miao & Rourav Basak & Sheng Ran & Yishuai Xu & Erica Kotta & Haowei He & Jonathan D. Denlinger & Yi-De Chuang & Y. Zhao & Z. Xu & J. W. Lynn & J. R. Jeffries & S. R. Saha & Ioannis Giannakis & Peg, 2019. "High temperature singlet-based magnetism from Hund’s rule correlations," Nature Communications, Nature, vol. 10(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-08497-3
    DOI: 10.1038/s41467-019-08497-3
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    Cited by:

    1. Hasan Siddiquee & Christopher Broyles & Erica Kotta & Shouzheng Liu & Shiyu Peng & Tai Kong & Byungkyun Kang & Qiang Zhu & Yongbin Lee & Liqin Ke & Hongming Weng & Jonathan D. Denlinger & L. Andrew Wr, 2023. "Breakdown of the scaling relation of anomalous Hall effect in Kondo lattice ferromagnet USbTe," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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