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arXiv · 2311.03800

Magnetism in Kitaev Quantum Spin Liquid Candidate RuBr$_3$

T. Weinhold·C. Wang·F. Seewald·V. Grinenko·Y. Imai·F. Sato·K. Ohgushi·H. -H. Klauss·R. Sarkar
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Abstract

The present studies show that long-range magnetic order takes place in RuBr$_3$ at $\approx$ 34 K. The observations of clear oscillations in the muon time spectra demonstrate the presence of well-defined internal fields at the muon sites. The magnetic ordering appears to be very robust and static suggesting a more conventional nature of magnetic ordering in the RuBr$_3$ system at zero field. Present investigations prove that in RuBr$_3$ the Kitaev interactions are likely to be weakened at zero field in comparison to the $\alpha$-RuCl$_3$ system. This proves that it is possible to tune the Kitaev interactions by replacing Cl with heavier halogen elements such as Br.

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T. Weinhold, C. Wang, F. Seewald, V. Grinenko, Y. Imai, F. Sato, K. Ohgushi, H. -H. Klauss, R. Sarkar. 2023-11-07. Magnetism in Kitaev Quantum Spin Liquid Candidate RuBr$_3$. https://doi.org/10.1103/physrevb.109.014440

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