Phonon modulation of the spin-orbit interaction as a spin relaxation mechanism in quantum dots

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We calculate the spin relaxation rates in a parabolic InSb quantum dot due to the spin interaction with acoustical phonons. We considered the deformation potential mechanism as the dominant electron-phonon coupling in the Pavlov-Firsov spin-phonon Hamiltonian. By studying suitable choices of magneti...

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Autores principales: Romano, C.L., Marques, G.E., Sanz, L., Alcalde, A.M.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_10980121_v77_n3_p_Romano
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_10980121_v77_n3_p_Romano2023-10-03T16:06:07Z Phonon modulation of the spin-orbit interaction as a spin relaxation mechanism in quantum dots Romano, C.L. Marques, G.E. Sanz, L. Alcalde, A.M. We calculate the spin relaxation rates in a parabolic InSb quantum dot due to the spin interaction with acoustical phonons. We considered the deformation potential mechanism as the dominant electron-phonon coupling in the Pavlov-Firsov spin-phonon Hamiltonian. By studying suitable choices of magnetic field and lateral dot size, we determine regions where the spin relaxation rates can be practically suppressed. We analyze the behavior of the spin relaxation rates as a function of an external magnetic field and mean quantum dot radius. Effects of the spin admixture due to Dresselhaus contribution to spin-orbit interaction are also discussed. © 2008 The American Physical Society. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_10980121_v77_n3_p_Romano
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description We calculate the spin relaxation rates in a parabolic InSb quantum dot due to the spin interaction with acoustical phonons. We considered the deformation potential mechanism as the dominant electron-phonon coupling in the Pavlov-Firsov spin-phonon Hamiltonian. By studying suitable choices of magnetic field and lateral dot size, we determine regions where the spin relaxation rates can be practically suppressed. We analyze the behavior of the spin relaxation rates as a function of an external magnetic field and mean quantum dot radius. Effects of the spin admixture due to Dresselhaus contribution to spin-orbit interaction are also discussed. © 2008 The American Physical Society.
format JOUR
author Romano, C.L.
Marques, G.E.
Sanz, L.
Alcalde, A.M.
spellingShingle Romano, C.L.
Marques, G.E.
Sanz, L.
Alcalde, A.M.
Phonon modulation of the spin-orbit interaction as a spin relaxation mechanism in quantum dots
author_facet Romano, C.L.
Marques, G.E.
Sanz, L.
Alcalde, A.M.
author_sort Romano, C.L.
title Phonon modulation of the spin-orbit interaction as a spin relaxation mechanism in quantum dots
title_short Phonon modulation of the spin-orbit interaction as a spin relaxation mechanism in quantum dots
title_full Phonon modulation of the spin-orbit interaction as a spin relaxation mechanism in quantum dots
title_fullStr Phonon modulation of the spin-orbit interaction as a spin relaxation mechanism in quantum dots
title_full_unstemmed Phonon modulation of the spin-orbit interaction as a spin relaxation mechanism in quantum dots
title_sort phonon modulation of the spin-orbit interaction as a spin relaxation mechanism in quantum dots
url http://hdl.handle.net/20.500.12110/paper_10980121_v77_n3_p_Romano
work_keys_str_mv AT romanocl phononmodulationofthespinorbitinteractionasaspinrelaxationmechanisminquantumdots
AT marquesge phononmodulationofthespinorbitinteractionasaspinrelaxationmechanisminquantumdots
AT sanzl phononmodulationofthespinorbitinteractionasaspinrelaxationmechanisminquantumdots
AT alcaldeam phononmodulationofthespinorbitinteractionasaspinrelaxationmechanisminquantumdots
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