English, Article edition: ELECTRON-SPIN POLARIZATION IN BOTH MAGNETICALLY AND ELECTRICALLY-MODULATED NANOSTRUCTURES MAO-WANG LU

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Physical Description
  • article
Language
  • English

Edition details

Title
  • ELECTRON-SPIN POLARIZATION IN BOTH MAGNETICALLY AND ELECTRICALLY-MODULATED NANOSTRUCTURES
Author
  • MAO-WANG LU
Physical Description
  • article
Notes
  • We theoretically investigate the spin-dependent transport properties of electrons in realistic magnetic-electric barrier nanostructures, which are produced by the deposition, on top of a heterostructure, of a metallic ferromagnetic stripe with an applied voltage. The degree of the electron-spin polarization is found to be closely associated with this voltage, although the use of applied voltage itself induces no spin polarization effect. As a positive voltage is applied to the stripe the electron-spin polarization shifts towards the low-energy region and increases; it shifts towards the high-energy direction and reduces for a negative applied voltage. These results shown in this work imply that the degree of electron-spin polarization can be tuned by means of an applied voltage on the stripes of system, which may result in a practical voltage-controlled spin filter.
  • Magnetic-electric barrier, spin filtering, spintronics, spin polarization, 73.40.Gk, 73.23.-b, 75.70.Cn
  • RePEc:wsi:srlxxx:v:12:y:2005:i:01:p:67-74
Language
  • English
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