Feil, Thomas and Tranitz, Hans-Peter and Reinwald, Matthias and Wegscheider, Werner
Electric-field stabilization in a high-density surface superlattice.
Applied Physics Letters 87 (21), p. 212112.
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By application of the cleaved-edge overgrowth technique, we realize a two-channel superlattice (SL) device. The structure combines the parallel transport through a low-density SL under almost homogeneous electric field conditions with that through a surface SL (SSL) with large carrier density, which is, without parallel transport, subject to pronounced field instabilities. Direct control of the ...
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