期刊
APPLIED PHYSICS LETTERS
卷 120, 期 24, 页码 -出版社
AIP Publishing
DOI: 10.1063/5.0093853
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资金
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES)
- Financiadora de Estudos e Projetos (FINEP)
- Fundacao de Amparo a Ciencia e Tecnologia do Estado de Pernambuco (FACEPE)
- Universidade Federal de Pernambuco
- Fundacao de Amparo a Pesquisa do Estado de Minas Gerais (FAPEMIG)-Rede de Pesquisa em Materiais 2D
- Rede de Nanomagnetismo
This study demonstrates the control of spin Hall angle θ(SH) through engineered arrays of Ag microdisks, showing an increase in current generated by spin pumping as the number of disks increase while maintaining their size and shape fixed.
The spin Hall angle (theta(SH)) is a measure of efficiency of the spin-to-charge conversion process. In this paper, we report that it is possible to control the theta(SH) by engineering an array of Ag microdisks by direct write laser lithography in multilayers formed by Pt/Ag/Pt/Py (Ni20Fe80) grown on Si/SiO2 substrates. The investigation of the spin-to-charge conversion was made using spin pumping measurements, and it was shown that as the number of disks increases, the current generated by the spin pumping also increases. This result demonstrates that it is possible to tune the spin Hall angle by changing the number of the Ag microdisks while keeping their size and shape fixed. Published under an exclusive license by AIP Publishing.
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