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Phonons and Phonon Confinement in Transport through Double Quantum Dots

S. Debald·T. Vorrath·T. Brandes·B. Kramer
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Abstract

We calculate the electron-phonon interaction coefficients for surface acoustic waves and for phonons in free standing quantum wells. These are used to derive the inelastic current through a double quantum dot caused by spontaneous emission of phonons. For the case of the free standing structure (phonon cavity), we predict a staircase-like inelastic current superimposed by van Hove singularities. Therefore, the phonon confinement can be detected by electron transport measurements.

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S. Debald, T. Vorrath, T. Brandes, B. Kramer. 2000-10-10. Phonons and Phonon Confinement in Transport through Double Quantum Dots. https://arxiv.org/abs/cond-mat/0010145

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