skip to main content

SciTech ConnectSciTech Connect

Title: Enhanced spin polarization in graphene with spin energy gap induced by spin-orbit coupling and strain

We investigate the possibility of spin polarization in graphene. The result shows that a spin energy gap can be opened in the presence of both spin-orbit coupling and strain. We find that high spin polarization with large spin-polarized current is achieved in the spin energy gap. However, only one of the two modulations is present, no spin polarization can be generated. So the combination of the two modulations provides a way to design tunable spin polarization without need for a magnetic element or an external magnetic field.
Authors:
; ;  [1] ;  [2] ;  [3]
  1. Department of Applied Physics, East China Jiaotong University, Nanchang 330013 (China)
  2. School of Computer, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004 (China)
  3. Institute for Advanced Study, Nanchang University, Nanchang 330031 (China)
Publication Date:
OSTI Identifier:
22304321
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 115; Journal Issue: 20; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CURRENTS; ENERGY GAP; GRAPHENE; L-S COUPLING; MAGNETIC FIELDS; MODULATION; SPIN; SPIN ORIENTATION; STRAINS