Dynamical screening of the electron-optical phonon interaction in two dimensions

C. H. Yang; Stephen Aplin Lyon

doi:10.1016/0378-4363(85)90361-4

Dynamical screening of the electron-optical phonon interaction in two dimensions

C. H. Yang, Stephen Aplin Lyon

Research output: Contribution to journal › Article › peer-review

31 Scopus citations

Abstract

We have included dynamical screening in a calculation of the interaction of LO phonons with electrons in a quantum well. The average phonon emission rate is reduced by a factor of about 2 for an electron areal density of 5×10¹¹/cm² and temperature in the range of 50-100K. The 2-dimensional plasmon enhances the interaction over a small range of wavevectors, which increases the importance of hot phonon effects and should cause a further reduction in cooling rates.

Original language	English (US)
Pages (from-to)	309-313
Number of pages	5
Journal	Physica B+C
Volume	134
Issue number	1-3
DOIs	https://doi.org/10.1016/0378-4363(85)90361-4
State	Published - Jan 1 1985

All Science Journal Classification (ASJC) codes

Engineering(all)

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title = "Dynamical screening of the electron-optical phonon interaction in two dimensions",

abstract = "We have included dynamical screening in a calculation of the interaction of LO phonons with electrons in a quantum well. The average phonon emission rate is reduced by a factor of about 2 for an electron areal density of 5×1011/cm2 and temperature in the range of 50-100K. The 2-dimensional plasmon enhances the interaction over a small range of wavevectors, which increases the importance of hot phonon effects and should cause a further reduction in cooling rates.",

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N2 - We have included dynamical screening in a calculation of the interaction of LO phonons with electrons in a quantum well. The average phonon emission rate is reduced by a factor of about 2 for an electron areal density of 5×1011/cm2 and temperature in the range of 50-100K. The 2-dimensional plasmon enhances the interaction over a small range of wavevectors, which increases the importance of hot phonon effects and should cause a further reduction in cooling rates.

AB - We have included dynamical screening in a calculation of the interaction of LO phonons with electrons in a quantum well. The average phonon emission rate is reduced by a factor of about 2 for an electron areal density of 5×1011/cm2 and temperature in the range of 50-100K. The 2-dimensional plasmon enhances the interaction over a small range of wavevectors, which increases the importance of hot phonon effects and should cause a further reduction in cooling rates.

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