Abstract
We study the spin-dependent transport properties of graphene nanoribbons with Rashba spin-orbit interaction (SOI). It is found that highly spin polarized electrical currents can be produced in asymmetricallynotched graphene nanoribbons, and the polarization components are found to be along the x, y and z directions. The spin polarization is largely enhanced by breaking the spatial symmetries of ideal graphene nanoribbons with Rashba SOI, and the spin polarized electrical currents with higher flexibility in the orientation of the polarization can be generated. This offers new possibilities for the generation of high spin polarization in graphene nanoribbons without external magnetic fields.
| Original language | English |
|---|---|
| Pages (from-to) | 6871-6877 |
| Journal | Physical Chemistry Chemical Physics |
| Volume | 19 |
| Issue number | 9 |
| Online published | 8 Feb 2017 |
| DOIs | |
| Publication status | Published - 7 Mar 2017 |
Funding
This work was supported by the National Natural Science Foundation of China under Grant No.11674310, "One-Hundred Talents Program'' of Guangdong University of Technology, City University of Hong Kong Strategic Research Grant (Project No.7004386), National Natural Science Foundation of China under Grant No. 11274260 and Guangdong University of Technology "OneHundred Young Talents Program'' (Project No.220413143).
Research Keywords
- ELECTRONIC-PROPERTIES
- EPITAXIAL GRAPHENE
- RIBBONS
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