Probing the Spin-Momentum Locking on Rashba Surfaces via Spin Current.

Autor:	Abrão JE; Departamento de Física, Universidade Federal de Pernambuco, 50670-901 Recife, Pernambuco, Brazil., Gomes da Silva E; Departamento de Física, Universidade Federal de Pernambuco, 50670-901 Recife, Pernambuco, Brazil.; Department of Physics and Astronomy, University of Iowa, Iowa City, Iowa 52242, United States., Rodrigues-Junior G; Departamento de Física, Universidade Federal de Viçosa, 36570-900 Viçosa, Minas Gerais, Brazil., Mendes JBS; Departamento de Física, Universidade Federal de Viçosa, 36570-900 Viçosa, Minas Gerais, Brazil., Azevedo A; Departamento de Física, Universidade Federal de Pernambuco, 50670-901 Recife, Pernambuco, Brazil.
Jazyk:	angličtina
Zdroj:	ACS applied materials & interfaces [ACS Appl Mater Interfaces] 2024 Jul 16. Date of Electronic Publication: 2024 Jul 16.
DOI:	10.1021/acsami.4c06090
Abstrakt:	In this study, we investigate the spin-momentum locking phenomenon on Rashba states of antimony (Sb) films. Utilizing spin pumping in conjunction with an external charge current, we uncover the topological properties of Sb surface states. Our key finding is the precise manipulation of the direction and magnitude of the charge current generated by the inverse Rashba-Edelstein effect. This control is achieved through the dynamic interaction between out-of-equilibrium pumped spins and spin-momentum-locked flowing spins, which are perpendicular to the charge current. Our results highlight Sb as a promising material for both fundamental and applied spintronics research. The studied Sb nanostructures demonstrate potential for the development of low-power logic gates operating with currents in the microampere range, paving the way for advanced spintronic applications.
Databáze:	MEDLINE
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