Spin filtering by a periodic spintronic device

2008/05/31 by Amnon Aharony, O. Entin‐Wohlman, Ora Entin-Wohlman +3 · 1 citation
Physics and Astronomy · #Condensed matter physics #Electric field #Electron #Electronic structure #Ferromagnetism #Geometry #Magnetic field #Magnetic properties of thin films #Perpendicular #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum mechanics #Spin (aerodynamics) #Spins #Spintronics #Tight binding #cond-mat.mes-hall

paper · pdf · doi:10.1103/physrevb.78.125328

published as Phys. Rev. B 78, 125328 (2008) · Proceedings, FQMT08

openalex publication_date 2008/09/30 · arxiv created 2008/12/12 · openalex created_date 2016/06/24 · arxiv updated 2020/04/08 · openalex updated_date 2026/08/05

Abstract

For a linear chain of diamondlike elements, we show that the Rashba spin-orbit interaction (which can be tuned by a perpendicular gate voltage) and the Aharonov-Bohm flux (due to a perpendicular magnetic field) can combine to select only one propagating ballistic mode, for which the electronic spins are fully polarized along a direction that can be controlled by the electric and magnetic fields and by the electron energy. All the other modes are evanescent. For a wide range of parameters, this chain can serve as a spin filter.

Citations

• Rashba-Effect-Induced Localization in Quantum Networks
• Oscillatory effects and the magnetic susceptibility of carriers in inversion layers
• Rashba effect in quantum networks
• Non-Abelian gauge field theory of the spin-orbit interaction and a perfect spin filter
• Significance of Electromagnetic Potentials in the Quantum Theory
• Experimental realization of a ballistic spin interferometer based on the Rashba effect using a nanolithographically defined square loop array
• Electrical resistance of disordered one-dimensional lattices

Cited by

• Multichannel effects in Rashba quantum wires