Deutschmann, R. A. and Wegscheider, Werner and Rother, Martin and Bichler, Max and Abstreiter, Gerhard
Miniband transport in vertical superlattice field-effect transistors.
Applied Physics Letters 79 (10), pp. 1564-1566.
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We study the nonequilibrium transport of two-dimensional electrons through a periodic potential. Our samples are fabricated using the cleaved-edge overgrowth technique to provide a vertical field-effect transistor with an undoped GaAs/AlGaAs superlattice channel orthogonal to the current flow. We find a pronounced negative differential resistance, the magnitude of which increases with increasing ...
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