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Title: Resonant control of spins in the quasi-one-dimensional channel by interplay of confinement and Zeeman splitting

We study the spin transport in a quasi-one-dimensional channel defined in a two-dimensional electron gas. The combined action of geometrical confinement and the spin precession is analyzed. We demonstrate that for certain orientations of the in-plane magnetic field and for specific range of its magnitude the spin polarization exhibits a strong decrease referred to as ballistic spin resonance (BSR). The phenomenon is due to the commensuration of the Zeeman and inter-subband energy splitting. We show that the BSR requires a finite spin-orbit (SO) interaction although the condition for the BSR onset is independent on SO coupling.
Authors:
; ;  [1]
  1. Department of Physics and Astronomy, University of Iowa, Iowa City, Iowa 52242 (United States)
Publication Date:
OSTI Identifier:
22307989
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1619; Journal Issue: 1; Conference: 4. conference on nuclei and mesoscopic physics 2014, East Lansing, MI (United States), 5-9 May 2014; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ELECTRON GAS; L-S COUPLING; MAGNETIC FIELDS; ONE-DIMENSIONAL CALCULATIONS; PRECESSION; RESONANCE; SPIN; SPIN ORIENTATION; TWO-DIMENSIONAL CALCULATIONS; ZEEMAN EFFECT