Intercorrelated anomalous Hall and spin Hall effect in kagome-lattice <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Co</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mi>Sn</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">S</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math>-based shandite films
Yong‐Chang Lau, Junya Ikeda, Kohei Fujiwara, Akihiro Ozawa, Jiaxin Zheng, Takeshi Seki, Kentaro Nomura, Liang Du, Quansheng Wu, Atsushi Tsukazaki, Kōki Takanashi
Abstract
This work establishes the pivotal role of topological bands in the magnetic Weyl semimetal prototype Co${}_{3}$Sn${}_{2}$S${}_{2}$ for efficient generation of spin current at room temperature via the spin Hall effect. Electron and hole-doped shandite films are systematically studied to map the evolution of Hall conductivities against Fermi level tuning. The authors demonstrate that the observed anomalous Hall conductivity and spin Hall conductivity maxima at distinct doping levels share the common origin in the band structure, suggesting such a correlation can be exploited for screening materials with large transverse magnetoelectric responses.