Local injector of spin-polarized electrons with semiconductor tip under light excitation
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United States of America Patent
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Nov 23, 2010
Grant Date -
Sep 4, 2008
app pub date -
May 23, 2006
filing date -
May 27, 2005
priority date (Note) -
Expired
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Abstract
The invention is directed to a spin-polarized electron injector using a semiconductor tip, in which tip the injected electrons are photocreated by a circularly polarized light excitation incident on the rear of the tip. This tip is supported by a transparent lever or cantilever and undergoes a surface treatment for the purpose of removing the surface oxide layer, to prevent said layer from reforming and to improve the proportion of injected electrons.
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