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Inter-Landau-level relaxation in two-dimensional electron gases at high magnetic fields

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Inter-Landau-level relaxation in two-dimensional electron gases at high magnetic fields. / Falko, Vladimir; Challis, L. J. .
In: Journal of Physics: Condensed Matter, Vol. 5, No. 23, 07.06.1993, p. 3945-3950.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Falko, V & Challis, LJ 1993, 'Inter-Landau-level relaxation in two-dimensional electron gases at high magnetic fields', Journal of Physics: Condensed Matter, vol. 5, no. 23, pp. 3945-3950. https://doi.org/10.1088/0953-8984/5/23/020

APA

Vancouver

Falko V, Challis LJ. Inter-Landau-level relaxation in two-dimensional electron gases at high magnetic fields. Journal of Physics: Condensed Matter. 1993 Jun 7;5(23):3945-3950. doi: 10.1088/0953-8984/5/23/020

Author

Falko, Vladimir ; Challis, L. J. . / Inter-Landau-level relaxation in two-dimensional electron gases at high magnetic fields. In: Journal of Physics: Condensed Matter. 1993 ; Vol. 5, No. 23. pp. 3945-3950.

Bibtex

@article{2c45efd7211240cb930ccf22f2ceb728,
title = "Inter-Landau-level relaxation in two-dimensional electron gases at high magnetic fields",
abstract = "Inter-Landau-level relaxation in two-dimensional electron and hole gases in high magnetic fields is strongly affected by the extent, lambda(z), of the electronic wavefunction perpendicular to the two-dimensional channel. As the field is increased, the suppression of the one-acoustic-phonon (cyclotron phonon) emission process that occurs when the phonon wavenumber at the cyclotron frequency exceeds lambda(z)-1 causes two-acoustic-phonon emission to replace one-phonon emission as the dominant relaxation process. The field at which this occurs has been calculated. The net reduction in relaxation rate is believed to be partly responsible for the sensitivity of the optical detection of cyclotron resonance in two-dimensional electron gas systems. In zero magnetic field, the two-phonon process should also contribute significantly to the energy and momentum relaxation of hot electrons.",
author = "Vladimir Falko and Challis, {L. J.}",
year = "1993",
month = jun,
day = "7",
doi = "10.1088/0953-8984/5/23/020",
language = "English",
volume = "5",
pages = "3945--3950",
journal = "Journal of Physics: Condensed Matter",
issn = "0953-8984",
publisher = "IOP Publishing Ltd",
number = "23",

}

RIS

TY - JOUR

T1 - Inter-Landau-level relaxation in two-dimensional electron gases at high magnetic fields

AU - Falko, Vladimir

AU - Challis, L. J.

PY - 1993/6/7

Y1 - 1993/6/7

N2 - Inter-Landau-level relaxation in two-dimensional electron and hole gases in high magnetic fields is strongly affected by the extent, lambda(z), of the electronic wavefunction perpendicular to the two-dimensional channel. As the field is increased, the suppression of the one-acoustic-phonon (cyclotron phonon) emission process that occurs when the phonon wavenumber at the cyclotron frequency exceeds lambda(z)-1 causes two-acoustic-phonon emission to replace one-phonon emission as the dominant relaxation process. The field at which this occurs has been calculated. The net reduction in relaxation rate is believed to be partly responsible for the sensitivity of the optical detection of cyclotron resonance in two-dimensional electron gas systems. In zero magnetic field, the two-phonon process should also contribute significantly to the energy and momentum relaxation of hot electrons.

AB - Inter-Landau-level relaxation in two-dimensional electron and hole gases in high magnetic fields is strongly affected by the extent, lambda(z), of the electronic wavefunction perpendicular to the two-dimensional channel. As the field is increased, the suppression of the one-acoustic-phonon (cyclotron phonon) emission process that occurs when the phonon wavenumber at the cyclotron frequency exceeds lambda(z)-1 causes two-acoustic-phonon emission to replace one-phonon emission as the dominant relaxation process. The field at which this occurs has been calculated. The net reduction in relaxation rate is believed to be partly responsible for the sensitivity of the optical detection of cyclotron resonance in two-dimensional electron gas systems. In zero magnetic field, the two-phonon process should also contribute significantly to the energy and momentum relaxation of hot electrons.

U2 - 10.1088/0953-8984/5/23/020

DO - 10.1088/0953-8984/5/23/020

M3 - Journal article

VL - 5

SP - 3945

EP - 3950

JO - Journal of Physics: Condensed Matter

JF - Journal of Physics: Condensed Matter

SN - 0953-8984

IS - 23

ER -