Spin-polarized transport in a quasi-1D wire with Rashba dots
- Authors
- Park, Dae Han; Kim, Heesang; Park, Youngsin; Kim, Nammee
- Issue Date
- Dec-2018
- Publisher
- AMER INST PHYSICS
- Citation
- AIP ADVANCES, v.8, no.12
- Journal Title
- AIP ADVANCES
- Volume
- 8
- Number
- 12
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/30887
- DOI
- 10.1063/1.5031476
- ISSN
- 2158-3226
- Abstract
- A numerical study on spin-polarized transport properties in a quasi-one-dimensional wire with Rashba quantum dots is presented. The ballistic spin transmission probability and spin density profiles are obtained using the quantum transmitting boundary method. The Fano-Rashba effect on the spin transmission is analyzed as a function of the Rashba spin-orbit coupling strength for single dot and double dot systems. The spin density profiles show the localized states that contribute to the backscattering and spin-flip processes in the Rashba dots. The results enlighten us on the Fano-Rashba effect caused by local Rashba spin-orbit coupling and provide concrete ideas for modeling a system with spin-polarized transport for future applications. (C) 2018 Author(s).
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