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The sample-dependent and sample-independent thermal transport properties of $\alpha$-RuCl$_3$ by Zhang, Heda; May, Andrew; Miao, Hu; Sales, Brian; Mandrus, David; Nagler, Stephen; McGuire, Michael; Yan, Jiaqiang is a scholarly article available to read on EtoBox.

What is The sample-dependent and sample-independent thermal transport properties of $\alpha$-RuCl$_3$ about?

We investigated the thermal transport properties of two $\alpha$-RuCl$_3$ crystals with different degrees of stacking disorder to understand the origin of the previously reported oscillatory feature in the field dependence of thermal conductivity. Crystal I shows only one magnetic order around 13\,K, which is near the highest T$_N$ for $\alpha$-RuCl$_3$ with stacking faults. Crystal II has less stacking disorder, with a dominant heat capacity at 7.6\,K along with weak anomalies at 10\,K and 13\,K. In the temperature and field dependence of thermal conductivity, no obvious anomaly was observed to be associated with the magnetic order around 13\,K for either crystal or around 10\,K for crystal II. Crystal II, with less disorder, showed clear oscillations in the field dependence of thermal conductivity, while crystal I, with more disorder, did not. For crystal I, an L-shaped region in the temperature-field space was observed where thermal Hall conductivity $\kappa_{xy}$/T is within $\pm$20\% of the half quantized thermal Hall conductivity $\kappa_{HQ}$/T. While for crystal II, $\kappa_{xy}$/T reaches $\kappa_{HQ}$/T only in the high field and high temperature regime with no indication

Author

Zhang, Heda; May, Andrew; Miao, Hu; Sales, Brian; Mandrus, David; Nagler, Stephen; McGuire, Michael; Yan, Jiaqiang

Published

2023

Language

EN