Interleaved bond frustration in a triangular lattice antiferromagnet.

IF 38.5 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nature Materials Pub Date : 2025-10-22 DOI:10.1038/s41563-025-02380-x

S J Gomez Alvarado,J R Chamorro,D Rout,J Hielscher,Sarah Schwarz,Caeli Benyacko,M B Stone,V Ovidiu Garlea,A R Jackson,G Pokharel,R Gomez,B R Ortiz,Suchismita Sarker,L Kautzsch,L C Gallington,R Seshadri,Stephen D Wilson

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引用次数: 0

Abstract

Frustration of long-range order via lattice geometry amplifies fluctuations and generates ground states that are highly sensitive to perturbations. Traditionally, geometric frustration is used to engineer unconventional magnetic states; however, the charge degree of freedom and bond order can be similarly frustrated. Finding materials that host both frustrated magnetic and bond networks holds promise for engineering structural and magnetic states with the potential of coupling to one another via either magnetic or strain fields. Here we identify an unusual instance of this coexistence in the triangular lattice antiferromagnets LnCd3P3 (Ln = lanthanides). These compounds feature two-dimensional planes of unique trigonal planar CdP3 units with an underlying bond instability that is frustrated via emergent kagome ice correlations. This bond instability is interleaved in between layers of frustrated magnetic moments. Our results establish LnCd3P3 as a rare materials class in which frustrated magnetism is embedded within a dopable semiconductor with a frustrated bond order instability.

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三角晶格反铁磁体中的交错键挫折。

通过点阵几何的远程顺序受挫放大波动并产生对扰动高度敏感的基态。传统上，几何挫折用于设计非常规磁态；然而，收费自由度和保释金顺序同样会受到挫折。寻找同时承载磁性和键合网络的材料，有望实现通过磁场或应变场相互耦合的工程结构和磁性状态。在这里，我们在三角形晶格反铁磁体LnCd3P3 （Ln =镧系元素）中发现了这种共存的一个不寻常的例子。这些化合物具有独特的三角形平面CdP3单元的二维平面，其潜在的键不稳定性通过出现的kagome冰相关而受到抑制。这种键的不稳定性交织在受挫的磁矩层之间。我们的研究结果表明，LnCd3P3是一种罕见的材料，在这种材料中，受挫磁性嵌入在具有受挫键序不稳定性的可掺杂半导体中。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nature Materials 工程技术-材料科学：综合

CiteScore

62.20

自引率

0.70%

发文量

221

审稿时长

3.2 months

期刊介绍： Nature Materials is a monthly multi-disciplinary journal aimed at bringing together cutting-edge research across the entire spectrum of materials science and engineering. It covers all applied and fundamental aspects of the synthesis/processing, structure/composition, properties, and performance of materials. The journal recognizes that materials research has an increasing impact on classical disciplines such as physics, chemistry, and biology. Additionally, Nature Materials provides a forum for the development of a common identity among materials scientists and encourages interdisciplinary collaboration. It takes an integrated and balanced approach to all areas of materials research, fostering the exchange of ideas between scientists involved in different disciplines. Nature Materials is an invaluable resource for scientists in academia and industry who are active in discovering and developing materials and materials-related concepts. It offers engaging and informative papers of exceptional significance and quality, with the aim of influencing the development of society in the future.