Unconventional Magnon Transport in Antiferromagnet NiPS3 Induced by an Anisotropic Spin-Flop Transition

IF 9.6 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Nano Letters Pub Date : 2025-03-21 DOI:10.1021/acs.nanolett.5c00397

Peisen Yuan, Beatriz Martín-García, Evgeny Modin, Montserrat Xochitl Aguilar-Pujol, Fèlix Casanova, Luis E. Hueso

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引用次数: 0

Abstract

Nonlocal magnon transport can provide valuable insight into the magnetic properties of magnetic insulators (MIs). A spin-flop transition, a typical magnetic reorientation in antiferromagnets, is expected to affect magnon transport, but studies on this topic are still rare and remain challenging, especially for van der Waals materials. Here we demonstrate the unconventional magnon transport driven by an anisotropic spin-flop transition in the van der Waals antiferromagnet NiPS₃. Examining the nonlocal voltage from thermally driven magnons reveals sharp jumps at certain directions when an in-plane magnetic field aligns with the b-axis of NiPS₃, attributed to an in-plane anisotropic spin-flop transition. Furthermore, the thermally driven magnon signal exhibits a 1/d² decay in thin NiPS₃, evidencing that it is dominated by the intrinsic spin Seebeck effect. Our findings highlight that the electrical detection of magnon currents in a nonlocal device geometry serves as a powerful approach for studying magnetic phase transitions in MIs.

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反铁磁体 NiPS3 中由各向异性自旋-翻转转变诱发的非常规磁子传输

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来源期刊

Nano Letters 工程技术-材料科学：综合

CiteScore

16.80

自引率

2.80%

发文量

1182

审稿时长

1.4 months

期刊介绍： Nano Letters serves as a dynamic platform for promptly disseminating original results in fundamental, applied, and emerging research across all facets of nanoscience and nanotechnology. A pivotal criterion for inclusion within Nano Letters is the convergence of at least two different areas or disciplines, ensuring a rich interdisciplinary scope. The journal is dedicated to fostering exploration in diverse areas, including: - Experimental and theoretical findings on physical, chemical, and biological phenomena at the nanoscale - Synthesis, characterization, and processing of organic, inorganic, polymer, and hybrid nanomaterials through physical, chemical, and biological methodologies - Modeling and simulation of synthetic, assembly, and interaction processes - Realization of integrated nanostructures and nano-engineered devices exhibiting advanced performance - Applications of nanoscale materials in living and environmental systems Nano Letters is committed to advancing and showcasing groundbreaking research that intersects various domains, fostering innovation and collaboration in the ever-evolving field of nanoscience and nanotechnology.