Intersubband energy relaxation in quantum well structures in a quantizing magnetic field

Yu A. Mityagin; M. P. Telenkov; I. A. Bulygina; Ravi Kumar; K. K. Nagaraja

doi:10.1016/j.physe.2022.115288

Intersubband energy relaxation in quantum well structures in a quantizing magnetic field

Yu A. Mityagin^*
, M. P. Telenkov
, I. A. Bulygina
, Ravi Kumar
, K. K. Nagaraja

^*Corresponding author for this work

Manipal Institute of Technology, Manipal

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

The kinetics of the intersubband relaxation of the electronic excitation energy in the GaAs/AlGaAs quantum well is studied when electrons are excited to the upper subband lying below the optical phonon energy. We found that electrons' interaction in different subbands plays a crucial role in relaxation. The electron-electron scattering events when the interacting electrons are in different subbands lead to heating of the electrons in the upper subbands and a significant acceleration of the energy relaxation.

Original language	English
Article number	115288
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	142
DOIs	https://doi.org/10.1016/j.physe.2022.115288
Publication status	Published - 08-2022

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics

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10.1016/j.physe.2022.115288

Cite this

@article{9f164dab71c24562a61324a331da2363,

title = "Intersubband energy relaxation in quantum well structures in a quantizing magnetic field",

abstract = "The kinetics of the intersubband relaxation of the electronic excitation energy in the GaAs/AlGaAs quantum well is studied when electrons are excited to the upper subband lying below the optical phonon energy. We found that electrons' interaction in different subbands plays a crucial role in relaxation. The electron-electron scattering events when the interacting electrons are in different subbands lead to heating of the electrons in the upper subbands and a significant acceleration of the energy relaxation.",

author = "Mityagin, \{Yu A.\} and Telenkov, \{M. P.\} and Bulygina, \{I. A.\} and Ravi Kumar and Nagaraja, \{K. K.\}",

note = "Funding Information: The work was carried out with financial support from the Russian Basic Research Foundation (project No. 18-02-00874-a ) and the Ministry of Education and Science of the Russian Federation in the framework of the Increase Competitiveness Program of MISiS. Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

year = "2022",

month = aug,

doi = "10.1016/j.physe.2022.115288",

language = "English",

volume = "142",

journal = "Physica E: Low-Dimensional Systems and Nanostructures",

issn = "1386-9477",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Intersubband energy relaxation in quantum well structures in a quantizing magnetic field

AU - Mityagin, Yu A.

AU - Telenkov, M. P.

AU - Bulygina, I. A.

AU - Kumar, Ravi

AU - Nagaraja, K. K.

N1 - Funding Information: The work was carried out with financial support from the Russian Basic Research Foundation (project No. 18-02-00874-a ) and the Ministry of Education and Science of the Russian Federation in the framework of the Increase Competitiveness Program of MISiS. Publisher Copyright: © 2022 Elsevier B.V.

PY - 2022/8

Y1 - 2022/8

N2 - The kinetics of the intersubband relaxation of the electronic excitation energy in the GaAs/AlGaAs quantum well is studied when electrons are excited to the upper subband lying below the optical phonon energy. We found that electrons' interaction in different subbands plays a crucial role in relaxation. The electron-electron scattering events when the interacting electrons are in different subbands lead to heating of the electrons in the upper subbands and a significant acceleration of the energy relaxation.

AB - The kinetics of the intersubband relaxation of the electronic excitation energy in the GaAs/AlGaAs quantum well is studied when electrons are excited to the upper subband lying below the optical phonon energy. We found that electrons' interaction in different subbands plays a crucial role in relaxation. The electron-electron scattering events when the interacting electrons are in different subbands lead to heating of the electrons in the upper subbands and a significant acceleration of the energy relaxation.

UR - https://www.scopus.com/pages/publications/85129984534

UR - https://www.scopus.com/pages/publications/85129984534#tab=citedBy

U2 - 10.1016/j.physe.2022.115288

DO - 10.1016/j.physe.2022.115288

M3 - Article

AN - SCOPUS:85129984534

SN - 1386-9477

VL - 142

JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

M1 - 115288

ER -

Intersubband energy relaxation in quantum well structures in a quantizing magnetic field

Abstract

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