Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
74 (1999), S. 2845-2847
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
A semimagnetic semiconductor tunneling device is proposed as a spin filter. This device, which gives spin-polarized electron current, is obtained by choosing different layers of II-VI compounds, with magnetic moments of substitutional ions of Mn2+ in some of the layers. We present a theoretical calculation of the tunneling current for the device, in which electron spin-flip scattering produced by the thermal fluctuations of the magnetic moments is accounted for and found to be inefficient in depolarizing the current. A different system is also investigated to show more clearly the effects of spin-flip scattering on the tunneling current. © 1999 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.124033
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