Intervalley electron scattering by phonons in (AlAs)1(GaAs) 3(001) superlattices

L. N. Nikitina, S. N. Grinyaev, V. G. Tyuterev

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Intervalley electron scattering by phonons in (AlAs)1(GaAs) 3(001) superlattices is studied using the pseudopotential method and a phenomenological model of the bonding forces. The deformation potentials between the conduction band extrema of the superlattice involving short-and long-wavelength phonons are calculated. It is shown that the mixing of states from the zinc-blende L valleys plays a greater role in intervalley scattering in a superlattice than the Γ-X mixing. In particular, due to L-L mixing, the Γ-X 3 transitions, analogous to Γ-L transitions in zinc blende, have higher intensities than the analogues of Γ-X transitions (Γ1-M 5 and (Γ13 transitions). The deformation potentials averaged over the scattering channels in the superlattice agree with the corresponding potentials in a solid solution, but all transitions in the superlattice have higher intensities for the lower states.

Original languageEnglish
Pages (from-to)129-138
Number of pages10
JournalPhysics of the Solid State
Volume48
Issue number1
DOIs
Publication statusPublished - Jan 2006
Externally publishedYes

Fingerprint

Electron scattering
Superlattices
Phonons
superlattices
electron scattering
phonons
Zinc
Scattering
Conduction bands
zinc
Solid solutions
range (extremes)
Wavelength
scattering
pseudopotentials
valleys
conduction bands
solid solutions
gallium arsenide
analogs

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Intervalley electron scattering by phonons in (AlAs)1(GaAs) 3(001) superlattices. / Nikitina, L. N.; Grinyaev, S. N.; Tyuterev, V. G.

In: Physics of the Solid State, Vol. 48, No. 1, 01.2006, p. 129-138.

Research output: Contribution to journalArticle

Nikitina, L. N. ; Grinyaev, S. N. ; Tyuterev, V. G. / Intervalley electron scattering by phonons in (AlAs)1(GaAs) 3(001) superlattices. In: Physics of the Solid State. 2006 ; Vol. 48, No. 1. pp. 129-138.
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