Experimental studies of the electron-phonon interaction in InGaAs quantum wires

T. Sugaya, J. P. Bird, D. K. Ferry, A. Sergeev, V. Mitin, K. Y. Jang, M. Ogura, Y. Sugiyama

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Abstract

Electron-heating measurements are used to compare the form of the electron-phonon interaction in two-dimensional, and quasi-one-dimensional, InGaAs quantum wires. Evidence for a strongly enhanced interaction is found in the quasi-one-dimensional wire, and is suggested to result from the presence of the singularities in its electronic density of states. The Bloch-Gruneisen criterion is easily violated in this wire, and its energy-loss function is found to show a weak temperature dependence, which is argued to result from a saturation of scattering processes in the uppermost one-dimensional subband.

Original languageEnglish (US)
Pages (from-to)727-729
Number of pages3
JournalApplied Physics Letters
Volume81
Issue number4
DOIs
StatePublished - Jul 22 2002

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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    Sugaya, T., Bird, J. P., Ferry, D. K., Sergeev, A., Mitin, V., Jang, K. Y., Ogura, M., & Sugiyama, Y. (2002). Experimental studies of the electron-phonon interaction in InGaAs quantum wires. Applied Physics Letters, 81(4), 727-729. https://doi.org/10.1063/1.1495089