&nbsp;<sup>51</sup>V NMR Study on Kagome Metals RV<sub>6</sub>Sn<sub>6</sub>: Hyperfine Couplings and c-f coupling in TbV<sub>6</sub>Sn<sub>6 </sub>and UV<sub>6</sub>Sn<sub>6</sub>

Oral-In-person

Abstract

The metallic Kagome systems RV6Sn6 (R: rare earth elements) are recognized as fertile platforms to explore exotic c–f correlated physics. To investigate the hyperfine coupling mechanism and their magnetism, we performed 51V nuclear magnetic resonance (NMR) measurements on localized 4f system, TbV6Sn6, and 5f system, UV6Sn6. In TbV6Sn6, the hyperfine coupling constant at the V site is comparable to that in the heavy fermion YbV6Sn6 [1]. In contrast, UV6Sn6 has ~40 times stronger transferred hyperfine coupling with localized 5f moments. These results are in striking contrast to the common expectation that stronger c-f hybridization in heavy-fermion systems should lead to a larger transferred hyperfine coupling.

 

[1] S. Park et al., arXiv:2506.04563

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Presenters

  • Riku Yamamoto

    • University of California, Los Angeles

Authors

  • Riku Yamamoto

    • University of California, Los Angeles

  • Sean Thomas

    • Los Alamos National Laboratory (LANL)

  • Joe Thompson

    • Los Alamos National Laboratory (LANL)

  • Eric Bauer

    • Los Alamos National Laboratory (LANL)

  • Brenden Ortiz

    • Oak Ridge National Laboratory

  • Priscila Rosa

    • Los Alamos National Laboratory (LANL)

  • Stuart Brown

    • University of California, Los Angeles