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Title: Spin polarized state filter based on semiconductor–dielectric–iron–semiconductor multi-nanolayer device

Highlights: • Development of a new spintronics device. • Development of quantum spin polarized filters. • Development of theory of quantum spin polarized filter. - Abstract: Presently we report spin-polarized state transport in semiconductor–dielectric–iron–semiconductor (SDIS) four-nanolayer sandwich devices. The exchange-resonance spectra in such devices are quite specific, differing also from spectra observed earlier in other three-nanolayer devices. The theoretical model developed earlier is extended and used to interpret the available experimental results. A detailed ab initio analysis of the magnetic-field dependence of the output magnetic moment is also performed. The model predicts an exchange spectrum comprising a series of peaks, with the spectral structure determined by several factors, discussed in the paper.
Authors:
 [1] ;  [2]
  1. Department of Physics, University of Puerto Rico, Rio Piedras, PO Box 23343, San Juan, PR 00931-3343 (United States)
  2. Universidade do Algarve, FCT, DQF, and CIQA, 8005-139 Faro (Portugal)
Publication Date:
OSTI Identifier:
22475727
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 64; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; DENSITY; DIELECTRIC MATERIALS; EQUIPMENT; FILTERS; INTERFACES; IRON; MAGNETIC FIELDS; MAGNETIC MATERIALS; MAGNETIC MOMENTS; MAGNETIC PROPERTIES; RESONANCE; SEMICONDUCTOR MATERIALS; SPECTRA; SPIN; SPIN ORIENTATION