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Miniband transport in vertical superlattice field effect transistors

✍ Scribed by R.A Deutschmann; W Wegscheider; M Rother; M Bichler; G Abstreiter

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
136 KB
Volume
12
Category
Article
ISSN
1386-9477

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✦ Synopsis

The non-equilibrium transport of electrons conΓΏned at an atomically sharp interface and subject to a periodic potential is studied. We ΓΏnd a pronounced negative di erential resistance, the magnitude of which increases with increasing modulation strength. The data is qualitatively consistent with the Esaki-Tsu transport model. We emphasize the signiΓΏcance of the two-dimensionality of the electron system and the gate to inhibit domain formation. Additional features in the source-drain current are attributed to Bloch-phonon resonances.

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