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arXiv 2406.04065cond-mat.str-el
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低温自旋动力学与层状α- RuI₃中磁序的缺失

Low-temperature spin dynamics and absence of magnetic order in layered $α$-RuI$_3$

University of Oxford(牛津大学);Rutherford Appleton Laboratory(鲁瑟福阿普尔顿实验室);Princeton University(普林斯顿大学)

Hank C. H. Wu, Benjamin M. Huddart, Francis L. Pratt, Danrui Ni, Robert J. Cava, Stephen J. Blundell

AI总结:

研究发现层状α-RuI₃在低温下仍保持自旋动态,与α-RuCl₃的磁有序基态形成对比,揭示了二维系统的低频波动特征。

摘要:

层状α-RuI₃晶体结构与广泛研究的α-RuCl₃化合物相同,后者被鉴定为可能的Kitaev系统,但其基态并非自旋液体行为,而是在14 K以下表现出磁有序的锯齿状基态。本文通过实验表明,与之相反,α-RuI₃中的自旋在至少50 mK下仍保持动态。我们利用μ子自旋松弛方法研究自旋动力学,并确定了低频波动的存在,这些波动特征于二维系统。

英文摘要:

The triangular-lattice system $α$-RuI$_3$ is isostructural to the widely-studied $α$-RuCl$_3$ compound which was identified as a potential Kitaev system but exhibits, instead of spin liquid behaviour, a magnetically ordered zig-zag ground state which sets in below 14~K. Here we show experimentally that, in contrast, the spins in $α$-RuI$_3$ remain dynamic down to at least 50~mK. We study the spin dynamics using muon-spin relaxation methods and determine the presence of low-frequency fluctuations which are characteristic of a two-dimensional system.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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