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Title: Spin polarization in one dimensional ring with Rashba spin-orbit interaction

We investigate theoretically spin polarization in a square AB ring and in a circular AB ring with the Rashba spin-orbit interaction (RSOI) and the magnetic flux. It is shown that in the presence of both the RSOI and the perpendicular magnetic field, the AB rings can work as a spin polarizer, and the spin polarization transport can be modulated by the values of the system parameters. In addition, we find that the square ring is more suitable for a spin polarizer due to its higher stability.
Authors:
 [1] ;  [2]
  1. College of Science, Beijing University of Chemical Technology, Beijing 100029 (China)
  2. State Key Laboratory for Superlattice and Microstructures, Institute of Semiconductors, Beijing 100083 (China)
Publication Date:
OSTI Identifier:
22275600
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 115; Journal Issue: 4; 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; L-S COUPLING; MAGNETIC FIELDS; MAGNETIC FLUX; ONE-DIMENSIONAL CALCULATIONS; PHASE STABILITY; POLARIZATION; SPIN ORIENTATION