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Novel Tunnelling Phenomena in Quantum Wells and Superlattices

Michael J. Kelly, S. R. Andrews, N.R. Couch, R A Davies, T. M. Kerr

Abstract

Beyond the double barrier diode as the paradigm of resonant tunnelling, a range of novel tunnelling phenomena have been investigated with judiciously designed multilayer semiconductor structures. We describe three such examples: tunnelling between two superlattices, tunnelling through indirect gap semiconductor layers, and the optical detection of tunnelling between quantum wells.

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Key concepts: Quantum tunnelling, Superlattice, Quantum well, Semiconductor, Physics, Condensed matter physics, Diode, Materials science