Physical Review B, volume 42, issue 14, pages 8947-8951

Phonon scattering and energy relaxation in two-, one-, and zero-dimensional electron gases.

U. Bockelmann 1, 2
G. Bastard 1
1
 
Laboratoire de Physique de la Matière Condensée de l’Ecole Normale Supérieure, 24 rue Lhomond, F-75005 Paris, France
Publication typeJournal Article
Publication date1990-11-15
Quartile SCImago
Q1
Quartile WOS
Q2
Impact factor3.7
ISSN24699950, 24699969, 10980121, 1550235X
Abstract
We report on calculations of intrasubband and intersubband phonon scattering in quantum-confined electron gases based on lattice-matched ${\mathrm{In}}_{\mathit{x}}$${\mathrm{Ga}}_{1\mathrm{\ensuremath{-}}\mathit{x}}$As/InP quantum wells. Dimensionality effects on the emission of acoustic phonons are studied comparing the scattering times of two-, one-, and zero-dimensional electron gases as a function of the lateral confinement. Optical phonon scattering in quantum wells and wires is discussed using a phenomenological broadening of the one-dimensional density of states. The energy relaxation rates of heated electron gases due to phonon emission and absorption have been calculated for lattice temperatures ${\mathit{T}}_{\mathit{l}}$ between 0.3 and 20 K. For a given heating power per electron, the electron temperature ${\mathit{T}}_{\mathit{e}}$ in a quantum wire can be greater or smaller than that in the corresponding quantum well, depending on the electron density ${\mathit{n}}_{\mathit{s}}$, while the energy relaxation in quantum dots with significant quantization energies is always slower than in the corresponding wells and wires.

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Bockelmann U., Bastard G. Phonon scattering and energy relaxation in two-, one-, and zero-dimensional electron gases. // Physical Review B. 1990. Vol. 42. No. 14. pp. 8947-8951.
GOST all authors (up to 50) Copy
Bockelmann U., Bastard G. Phonon scattering and energy relaxation in two-, one-, and zero-dimensional electron gases. // Physical Review B. 1990. Vol. 42. No. 14. pp. 8947-8951.
RIS |
Cite this
RIS Copy
TY - JOUR
DO - 10.1103/PhysRevB.42.8947
UR - https://doi.org/10.1103/PhysRevB.42.8947
TI - Phonon scattering and energy relaxation in two-, one-, and zero-dimensional electron gases.
T2 - Physical Review B
AU - Bockelmann, U.
AU - Bastard, G.
PY - 1990
DA - 1990/11/15 00:00:00
PB - American Physical Society (APS)
SP - 8947-8951
IS - 14
VL - 42
SN - 2469-9950
SN - 2469-9969
SN - 1098-0121
SN - 1550-235X
ER -
BibTex |
Cite this
BibTex Copy
@article{1990_Bockelmann,
author = {U. Bockelmann and G. Bastard},
title = {Phonon scattering and energy relaxation in two-, one-, and zero-dimensional electron gases.},
journal = {Physical Review B},
year = {1990},
volume = {42},
publisher = {American Physical Society (APS)},
month = {nov},
url = {https://doi.org/10.1103/PhysRevB.42.8947},
number = {14},
pages = {8947--8951},
doi = {10.1103/PhysRevB.42.8947}
}
MLA
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MLA Copy
Bockelmann, U., et al. “Phonon scattering and energy relaxation in two-, one-, and zero-dimensional electron gases..” Physical Review B, vol. 42, no. 14, Nov. 1990, pp. 8947-8951. https://doi.org/10.1103/PhysRevB.42.8947.
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