Commensurate Magnetic Structures in ThCr2Si2-Type Materials: A New Symmetry-Based Classification Scheme and Prediction of Emergent Phenomena

IF 9.7 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Today Physics Pub Date : 2025-10-18 DOI:10.1016/j.mtphys.2025.101905

A.M. Bartashevich, S.V. Streltsov, E.G. Gerasimov, M.A. Semkin, A.F. Gubkin, A.N. Pirogov, N.V. Mushnikov, P.B. Terentev, M.I. Bartashevich

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引用次数: 0

Abstract

RM

₂X₂ (R – is a rare-earth metal or K, Ca, Ba and others; M – is a 3d-, 4d-, 5d-transition metal; X – is Si, Ge, P, As and others) materials with the ThCr₂Si₂-type crystal structure exhibit a remarkable diversity of magnetic structures and phase transitions. We perform a comprehensive representational analysis of commensurate magnetic structures and propose a new classification scheme based on symmetry consideration. Our analysis demonstrates that all previously reported commensurate magnetic structures in these materials conform to this scheme. Furthermore, it allows us to suggest novel magnetic structures for unexplored RM₂X₂ compounds, identify altermagnets among them and predict several emergent phenomena in these materials such as anomalous Hall and Nernst effects and transverse piezoelectric effect.

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thcr2si2型材料中的相称磁结构：一种新的基于对称的分类方案和紧急现象预测

RM2X2 （R -为稀土金属或K、Ca、Ba等；M -为3d、4d、5d过渡金属；X -为Si、Ge、P、As等）具有thcr2si2型晶体结构的材料表现出显著的磁性结构和相变多样性。我们对相称磁结构进行了全面的表征分析，并提出了一种基于对称考虑的新分类方案。我们的分析表明，所有以前报道的这些材料的相应的磁性结构符合这一方案。此外，它允许我们为未开发的RM2X2化合物提出新的磁性结构，识别其中的交替磁体，并预测这些材料中的几种紧急现象，如异常霍尔和能斯特效应以及横向压电效应。

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来源期刊

Materials Today Physics Materials Science-General Materials Science

CiteScore

14.00

自引率

7.80%

发文量

284

审稿时长

15 days

期刊介绍： Materials Today Physics is a multi-disciplinary journal focused on the physics of materials, encompassing both the physical properties and materials synthesis. Operating at the interface of physics and materials science, this journal covers one of the largest and most dynamic fields within physical science. The forefront research in materials physics is driving advancements in new materials, uncovering new physics, and fostering novel applications at an unprecedented pace.