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Tunable Anomalous Hall Effect in a Kagomé Ferromagnetic Weyl Semimetal.
Pate, Samuel E; Wang, Bin; Zhang, Yang; Shen, Bing; Liu, Enke; Martin, Ivar; Jiang, J Samuel; Zhou, Xiuquan; Chung, Duck Young; Kanatzidis, Mercouri G; Welp, Ulrich; Kwok, Wai-Kwong; Xiao, Zhi-Li.
Afiliación
  • Pate SE; Materials Science Division, Argonne National Laboratory, Argonne, 60439, USA.
  • Wang B; Department of Physics, Northern Illinois University, DeKalb, 60115, USA.
  • Zhang Y; School of Physics, Sun Yat-sen University, Guangzhou, 510275, China.
  • Shen B; Department of Physics, University of Tennessee, Knoxville, 37996, USA.
  • Liu E; Min H. Kao Department of Electrical Engineering and Computer Science, University of Tennessee, Knoxville, 37996, USA.
  • Martin I; School of Physics, Sun Yat-sen University, Guangzhou, 510275, China.
  • Jiang JS; Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China.
  • Zhou X; Materials Science Division, Argonne National Laboratory, Argonne, 60439, USA.
  • Chung DY; Materials Science Division, Argonne National Laboratory, Argonne, 60439, USA.
  • Kanatzidis MG; Materials Science Division, Argonne National Laboratory, Argonne, 60439, USA.
  • Welp U; Materials Science Division, Argonne National Laboratory, Argonne, 60439, USA.
  • Kwok WK; Materials Science Division, Argonne National Laboratory, Argonne, 60439, USA.
  • Xiao ZL; Department of Chemistry, Northwestern University, Evanston, 60208, USA.
Adv Sci (Weinh) ; : e2406882, 2024 Sep 26.
Article en En | MEDLINE | ID: mdl-39324642
ABSTRACT
Emerging from the intricate interplay of topology and magnetism, the giant anomalous Hall effect (AHE) is the most known topological property of the recently discovered kagomé ferromagnetic Weyl semimetal Co3Sn2S2 with the magnetic Co atoms arranged on a kagomé lattice. Here it is reported that the AHE in Co3Sn2S2 can be fine-tuned by an applied magnetic field orientated within ≈2° of the kagomé plane, while beyond this regime, it stays unchanged. Particularly, it can vanish in magnetic fields parallel to the kagomé plane and even decrease in magnetic fields collinear with the spin direction. This tunable AHE can be attributed to local spin switching enabled by the geometrical frustration of the magnetic kagomé lattice, revealing that spins in a kagomé ferromagnet change their switching behavior as the magnetic field approaches the kagomé plane. These results also suggest a versatile way to tune the properties of a kagomé magnet.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Adv Sci (Weinh) Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Adv Sci (Weinh) Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos
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