首页|Evolution of anomalous Hall effect in ferromagnetic Weyl semimetal NbxZr1-xCo2Sn

Evolution of anomalous Hall effect in ferromagnetic Weyl semimetal NbxZr1-xCo2Sn

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Magnetic topological semimetal can host various topological non-trivial states leading to exotic novel transport prop-erties.Here we report the systematic magneto-transport studies on the Heusler alloy NbxZr1-xCo2Sn considered as a ferromagnetic(FM)Weyl semimetal.The cusp anomaly of temperature-dependent resistivity and large isotropic negative magneto-resistivity(MR)emerge around the FM transition consistent with the theoretical half-metallic predictions.The prominent anomalous Hall effect(AHE)has the same behavior with the applied field along various crystal directions.The Nb doping introduces more disorder resulting in the enhancement of the upturn for the temperature-dependent resistivity in low temperatures.With Nb doping,the AHE exhibits systemic evolution with the Fermi level lifted.At the doping level of x=0.25,the AHE mainly originates from the intrinsic contribution related to non-trivial topological Weyl states.

anomalous Hall effectmagnetic Weyl semimetalferromagnetism

陈博文、沈冰

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Center for Neutron Science and Technology,Guangdong Provincial Key Laboratory of Magnetoelectric Physics and Devices,School of Physics,Sun Yat-Sen University,Guangzhou 510275,China

State Key Laboratory of Optoelectronic Materials and Technologies,Sun Yat-Sen University,Guangzhou 510275,China

National Key Research and Development Program of ChinaNational Key Research and Development Program of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNatural Science Foundation of Guangdong Province,ChinaOpen Project of Guangdong Provincial Key Laboratory of Magnetoelectric Physics and DevicesOpen Project of Key Laboratory of Optoelectronic Materials and Technologies

2023YFF07184002023YFA1406500U2130101921652042022A15150100352022B1212010008OEMT-2023-ZTS-01

2024

10.1088/1674-1056/ad4a3b

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(8)