Electron energy relaxation mechanism in n-type InxGa1-xAs1-yBiy alloys under electric and magnetic fields
Date
2024-09-03
Journal Title
Journal ISSN
Volume Title
Publisher
Physica Scripta
Abstract
We investigate the power loss per electron mechanism of hot electrons generated under electric and magnetic fields in n-type InxGa1-xAs1-yBiy epitaxial layers. Acoustic phonons are generated under various electric fields to determine the hot-electron energy relaxation mechanisms at low temperatures. The hot electron temperatures are determined by theoretical calculation of the amplitude of the magnetoresistance oscillation. The power loss per degenerate electron is analytically modeled with possible scattering mechanisms. The modeling of the experimental results reveals that power dissipation occurs by employing deformation potential energy scattering for all the samples. The deformation potential energy increases by ∼ 2.14 eV/Bi% when Bi atoms are introduced into ternary InGaAs alloy and the increase in the deformation potential energy is found to be independent of the electron density, which indicates that power dissipation occurs in the equipartition regime.
Description
This article was originally published in Physica Scripta. The version of record is available at: https://doi.org/10.1088/1402-4896/ad7179. © 2024 The Author(s). Published by IOP Publishing Ltd
Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence (http://creativecommons.org/licenses/by/4.0). Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
Keywords
bismide, quasi-two dimensional electron, energy relaxation, deformation potential, electromechanical coupling
Citation
Aydin, Mustafa, Selen Nur Yilmaz, Ayse Erol, James Bork, Joshua Zide, and Omer Donmez. “Electron Energy Relaxation Mechanism in N-Type InxGa1-xAs1-yBiy Alloys under Electric and Magnetic Fields.” Physica Scripta 99, no. 10 (2024): 105909. https://doi.org/10.1088/1402-4896/ad7179.