Journal
MATERIALS
Volume 15, Issue 15, Pages -Publisher
MDPI
DOI: 10.3390/ma15155149
Keywords
2D Rashba ferromagnetic electron gas; spin-orbit torque; longitudinal conductivity
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Funding
- Natural Science Foundation of Fujian Province, China [2021J05245]
- Wuyi University [YJ202014]
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This paper investigates the spin-orbit torque and transport property in a 2D Rashba ferromagnetic electron gas. The longitudinal conductivity has two parts: one is determined by the charge density and independent of spin degrees of freedom, while the other is directly proportional to spin-orbit torque regardless of the band structure and temperature. This study reveals a general relationship between the transport property and spin-orbit torque. Additionally, the impacts of the spin-orbit coupling constant and Fermi energy on transverse conductivity and spin-orbit torque are discussed, providing helpful information for relevant experiments.
In this paper, we investigate the spin-orbit torque and transport property in a 2D Rashba ferromagnetic electron gas. The longitudinal conductivity can be divided into two parts: the first term is determined by the charge density and is independent of the spin degrees of freedom. The second term depends on the two bands that spin in the opposite directions, and it is directly proportional to spin-orbit torque regardless of the band structure and temperature. This is a general and underlying relation between the transport property and spin-orbit torque. Moreover, we show the impacts of the spin-orbit coupling constant and Fermi energy on transverse conductivity and spin-orbit torque, which is helpful for relevant experiments.
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