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arXiv · 2103.07511

Pressure induced multicriticality and electronic instability in quasi-kagome ferromagnet URhSn

Arvind Maurya·Dilip Bhoi·Fuminori Honda·Yusei Shimizu·Ai Nakamura·Yoshiki J. Sato·Dexin Li·Yoshiya Homma·M. Sathiskumar·Jun Gouchi·Yoshiya Uwatoko·Dai Aoki
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Abstract

We report an unconventional class of pressure induced quantum phase transition, possessing two bicritical points at 6.25 GPa in URhSn. This unique transformation accompanies a Fermi surface reconstruction, demarcating competing ordered phases suitably described with localized and itinerant description of the magnetic $5f$-electrons. Ferromagnetic fluctuations over a wide range of temperatures and pressures in the pressure-induced low temperature phase are evidenced by a robust $T^{5/3}$ temperature dependence of resistivity up to 11 GPa, which is a characteristic of elusive marginal Fermi-liquid state.

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Arvind Maurya, Dilip Bhoi, Fuminori Honda, Yusei Shimizu, Ai Nakamura, Yoshiki J. Sato, Dexin Li, Yoshiya Homma, M. Sathiskumar, Jun Gouchi, Yoshiya Uwatoko, Dai Aoki. 2021-03-12. Pressure induced multicriticality and electronic instability in quasi-kagome ferromagnet URhSn. https://doi.org/10.1103/physrevb.104.195119

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