首页|Alternating spin splitting of electronic and magnon bands in two-dimensional altermagnetic materials

Alternating spin splitting of electronic and magnon bands in two-dimensional altermagnetic materials

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Unconventional antiferromagnetism dubbed as altermagnetism was first discovered in rutile structured magnets,which is featured by spin splitting even without the spin-orbital coupling effect.This interesting phenomenon has been discovered in more altermagnetic materials.In this work,we explore two-dimensional altermagnetic materials by studying two series of two-dimensional magnets,includingMF4with M covering all 3d and 4d transition metal elements,as well as TS2 with T=V,Cr,Mn,Fe.Through the magnetic symmetry operation of RuF4 and MnS2,it is verified that breaking the time inversion is a necessary condition for spin splitting.Based on symmetry analysis and first-principles calculations,we find that the electronic bands and magnon dispersion experience alternating spin splitting along the same path.This work paves the way for exploring altermagnetism in two-dimensional materials.

two-dimensional altermagnetic materialsaltermagnetismspin splittingfirst-principles calcula-tions

王乾、邬大为、郭光华、龙孟秋、王云鹏

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School of Physics,Central South University,Changsha 410083,China

National Natural Science Foundation of ChinaHunan Province Postgraduate Research and Innovation Projectcomputational resources from the High Performance Computing Center of Central South University

12004439CX20230229

2024

10.1088/1674-1056/ad6425

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子：0.995
ISSN：1674-1056
年,卷(期)：2024.33(9)