Controlled generation of resonant electron-electron scattering induced current in quantum well structures

Coquelin, M.; Strasser, G.; Gornik, E.; Bakshi, P.; Ciftan, M.
October 2009
Applied Physics Letters;10/26/2009, Vol. 95 Issue 17, p172108
Academic Journal
Current voltage measurements on samples designed for the resonant excitation of intersubband plasmons are reported. These resonances which represent collective electron-electron scattering processes contribute a significant amount to the total current under controlled bias conditions. Measurements with applied magnetic field give additional evidence for the resonant mechanism when the cyclotron energy (or multiples of it) matches the subband splitting.


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