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arXiv · 2309.16947

Muon Spin Relaxation Study of frustrated Tm$_3$Sb$_3$Mg$_2$O$_{14}$ with kagom\'{e} lattice

Yanxing Yang·Kaiwen Chen·Zhaofeng Ding·Adrian D. Hillier·Lei Shu
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Abstract

The structure and magnetic properties of rare-earth ions Tm$^{3+}$ kagom\'{e} lattice Tm$_3$Sb$_3$Mg$_2$O$_{14}$ are studied by X-ray diffraction, magnetic susceptibility and muon spin relaxation ($\mu$SR) experiments. The existence of a small amount of Tm/Mg site-mixing disorder is revealed. DC magnetic susceptibility measurement shows that Tm$^{3+}$ magnetic moments are antiferromagnetically correlated with a negative Curie-Weiss temperature of -26.3 K. Neither long-range magnetic order nor spin-glass transition is observed by DC and AC magnetic susceptibility, and confirmed by $\mu$SR experiment down to 0.1 K. However, the emergence of short-range magnetic order is indicated by the zero-field $\mu$SR experiments, and the absence of spin dynamics at low temperatures is evidenced by the longitudinal-field $\mu$SR technique. Compared with the results of Tm$_3$Sb$_3$Zn$_2$O$_{14}$, another Tm-based kagom\'{e} lattice with much more site-mixing disorder, the gapless spin liquid like behaviors in Tm$_3$Sb$_3$Zn$_2$O$_{14}$ can be induced by disorder effect. Samples with perfect geometrical frustration are in urgent demand to establish whether QSL exits in this kind of materials with rare-earth kagom\'{e} lattice.

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Yanxing Yang, Kaiwen Chen, Zhaofeng Ding, Adrian D. Hillier, Lei Shu. 2023-09-29. Muon Spin Relaxation Study of frustrated Tm$_3$Sb$_3$Mg$_2$O$_{14}$ with kagom\'{e} lattice. https://arxiv.org/abs/2309.16947

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