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 (Γ1-Γ3 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 language | English |
|---|---|
| Pages (from-to) | 129-138 |
| Number of pages | 10 |
| Journal | Physics of the Solid State |
| Volume | 48 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jan 2006 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
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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 journal › Article
}
TY - JOUR
T1 - Intervalley electron scattering by phonons in (AlAs)1(GaAs) 3(001) superlattices
AU - Nikitina, L. N.
AU - Grinyaev, S. N.
AU - Tyuterev, V. G.
PY - 2006/1
Y1 - 2006/1
N2 - 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 (Γ1-Γ3 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.
AB - 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 (Γ1-Γ3 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.
UR - http://www.scopus.com/inward/record.url?scp=33144466943&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33144466943&partnerID=8YFLogxK
U2 - 10.1134/S1063783406010252
DO - 10.1134/S1063783406010252
M3 - Article
AN - SCOPUS:33144466943
VL - 48
SP - 129
EP - 138
JO - Physics of the Solid State
JF - Physics of the Solid State
SN - 1063-7834
IS - 1
ER -