Decay of polar-optical phonons in semiconductors

D. K. Ferry

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

In electrical transport in compound semiconductors, the polar optical phonons can be driven from equilibrium by energetic phonon emission from the electrons. These phonons decay via bulk interactions with the acoustic modes through anharmonic terms of the crystal potential and through the second-order electric moment, or second-order piezoelectric, of the lattice. The relaxation rates for these processes are calculated and applied to InSb. It is found that the second-order electric moment dominates the decay of the polar modes although the two processes are comparable in magnitude.

Original languageEnglish (US)
Pages (from-to)4277-4280
Number of pages4
JournalPhysical Review B
Volume9
Issue number10
DOIs
StatePublished - 1974
Externally publishedYes

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electric moments
Phonons
phonons
Semiconductor materials
Lattice vibrations
decay
Crystals
acoustics
Electrons
crystals
electrons
interactions

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Decay of polar-optical phonons in semiconductors. / Ferry, D. K.

In: Physical Review B, Vol. 9, No. 10, 1974, p. 4277-4280.

Research output: Contribution to journalArticle

Ferry, D. K. / Decay of polar-optical phonons in semiconductors. In: Physical Review B. 1974 ; Vol. 9, No. 10. pp. 4277-4280.
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