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|Title: ||Electrical spin injection in a ferromagnet/tunnel barrier/semiconductor heterostructure|
|Authors: ||Motsnyi, V.F.|
DE BOECK, Joan
van Roy, W.
|Issue Date: ||2002|
|Citation: ||Applied physics letters, 81. p. 265-267|
|Abstract: ||We demonstrate experimentally the electrical electron spin injection from a ferromagnetic metal/tunnel barrier contact into a III–V semiconductor light emitting diode (LED). The injected electrons have in-plane spin orientation. By applying a relatively small oblique external magnetic field this spin orientation within the semiconductor can be manipulated to have a nonzero out-of-plane component. By measuring the resulting circular polarization of the emitted light, we observe injected spin polarization in excess of 9% at 80 K in a CoFe/AlOx/(Al,Ga)As/GaAs surface-emitting spin-LED.|
|ISI #: ||000176487400027|
|Type: ||Journal Contribution|
|Appears in Collections: ||Research publications|
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