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Spin-flip-driven anomalous Hall effect and anisotropic magnetoresistance in a layered Ising antiferromagnet.

ABSTRACT: The influence of magnetocrystalline anisotropy in antiferromagnets is evident in a spin flip or flop transition. Contrary to spin flops, a spin-flip transition has been scarcely presented due to its specific condition of relatively strong magnetocrystalline anisotropy and the role of spin-flips on anisotropic phenomena has not been investigated in detail. In this study, we present antiferromagnet-based functional properties on an itinerant Ising antiferromagnet Ca_0.9Sr_0.1Co₂As₂. In the presence of a rotating magnetic field, anomalous Hall conductivity and anisotropic magnetoresistance are demonstrated, the effects of which are maximized above the spin-flip transition. Moreover, a joint experimental and theoretical study is conducted to provide an efficient tool to identify various spin states, which can be useful in spin-processing functionalities.

SUBMITTER: Oh DG

PROVIDER: S-EPMC9974960 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature

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Spin-flip-driven anomalous Hall effect and anisotropic magnetoresistance in a layered Ising antiferromagnet.

Oh Dong Gun DG Kim Jong Hyuk JH Kim Mi Kyung MK Jeong Ki Won KW Shin Hyun Jun HJ Hong Jae Min JM Kim Jin Seok JS Moon Kyungsun K Lee Nara N Choi Young Jai YJ

Scientific reports 20230228 1

The influence of magnetocrystalline anisotropy in antiferromagnets is evident in a spin flip or flop transition. Contrary to spin flops, a spin-flip transition has been scarcely presented due to its specific condition of relatively strong magnetocrystalline anisotropy and the role of spin-flips on anisotropic phenomena has not been investigated in detail. In this study, we present antiferromagnet-based functional properties on an itinerant Ising antiferromagnet Ca<sub>0.9</sub>Sr<sub>0.1</sub>Co ...[more]

PMID: 36854958

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