Ballistic electron magnetic microscopy on epitaxial spin valves

Heindl, Emanuel ; Vancea, Johann ; Back, Christian

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Date of publication of this fulltext: 05 Aug 2009 13:34

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Abstract

The tip of a scanning tunnelling microscope has been used as an injector of hot electrons or hot holes into a spin-valve epitaxially grown on n-GaAs$_{67}$P$_{33}$. Spin dependent transport of injected- and hole excited electrons has been studied in an external magnetic field at room temperature. Significant variations in the collector current due to the spin dependent inelastic decay of the hot ...