Uniaxial ferromagnetism in the vanadium-based kagome metal TbV6Sn6

ORAL

Abstract

Vanadium-based kagome metals RV6Sn6 (R=rare earth) are appealing candidates for exploring the interplay between R-site magnetism and nontrivial band topology associated with the nonmagnetic vanadium-based kagome network. Here we present the synthesis and characterization of TbV6Sn6 via single crystal X-ray diffraction, magnetization, transport, and heat capacity measurements. Magnetization measurements reveal strong, uniaxial magnetic anisotropy rooted in the alignment of Tb3+ moments in the interplane direction below 4.3(2) K. TbV6Sn6 exhibits multiband transport behavior with high mobilities of charge carriers, and our measurements suggest TbV6Sn6 is a promising candidate for hosting Chern gaps driven via the interplay between strong spin-orbit coupling, Tb-site magnetic order and the band topology of the V-site kagome network.

*This work is supported via the UC Santa Barbara NSF Quantum Foundry funded via the Q-AMASE-i program under Award No. DMR-1906325. We acknowledge the use of the computing facilities of the Center for Scientific Computing at UC Santa Barbara supported by NSF CNS 1725797 and NSF DMR 1720256.

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Publication: PHYSICAL REVIEW MATERIALS 6, 104202 (2022)

Presenters

  • Ganesh Pokharel

    • University of California, Santa Barbara

Authors

  • Ganesh Pokharel

    • University of California, Santa Barbara

  • Brenden Ortiz

    • University of California, Santa Barbara

  • Juan Chamorro

    • University of California, Santa Barbara
    • Johns Hopkins University

  • Paul M Sarte

    • University of California, Santa Barbara

  • Linus Kautzsch

    • University of California, Santa Barbara

  • Guang Wu

    • University of California Santa Barbara

  • Stephen D Wilson

    • University of California, Santa Barbara