Excitation and transport of hot holes in a magnetic tunnel transistor


Park, B.G. and Haq, E. and Banerjee, T. and Min, B.C. and Lodder, J.C. and Jansen, R. (2006) Excitation and transport of hot holes in a magnetic tunnel transistor. Journal of applied physics, 99 . 08S703. ISSN 0021-8979

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Abstract:Spin-dependent transport of nonequilibrium holes has been investigated using a magnetic tunnel transistor in which a magnetic tunnel junction is combined with a p-type semiconductor. The device can be used for direct hole injection and collection, or in reverse mode in which holes are created by inelastic decay of injected hot electrons via electron-hole pair generation. In the latter case, the collected hole current is larger, and a magnetocurrent (MC) of 90% is observed at an emitter bias of –0.8 V. This positive and large MC indicates that hot holes generated by hot electrons of majority spin contribute mostly to the collector current.
Item Type:Article
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/66037
Official URL:http://dx.doi.org/10.1063/1.2177202
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