Spin-orbit effects in nanowire-based wurtzite semiconductor quantum dots

We study the effect of the Dresselhaus spin-orbit interaction on the electronic states and spin relaxation rates of cylindrical quantum dots defined on quantum wires having wurtzite lattice structure. The linear and cubic contributions of the bulk Dresselhaus spin-orbit coupling (SOC) are taken into...

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Autores principales: Intronati, Guido A., Tamborenea, Pablo Ignacio
Publicado: 2013
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10980121_v88_n4_p_Intronati
http://hdl.handle.net/20.500.12110/paper_10980121_v88_n4_p_Intronati
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_10980121_v88_n4_p_Intronati
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spelling paper:paper_10980121_v88_n4_p_Intronati2023-06-08T16:07:55Z Spin-orbit effects in nanowire-based wurtzite semiconductor quantum dots Intronati, Guido A. Tamborenea, Pablo Ignacio We study the effect of the Dresselhaus spin-orbit interaction on the electronic states and spin relaxation rates of cylindrical quantum dots defined on quantum wires having wurtzite lattice structure. The linear and cubic contributions of the bulk Dresselhaus spin-orbit coupling (SOC) are taken into account, along with the influence of a weak external magnetic field. The previously found analytic solution for the electronic states of cylindrical quantum dots with zinc blende lattice structures with Rashba interaction is extended to the case of quantum dots with wurtzite lattices. For the electronic states in InAs dots, we determine the spin texture and the effective g factor, which shows a scaling collapse when plotted as a function of an effective renormalized dot-size-dependent spin-orbit coupling strength. The acoustic-phonon-induced spin relaxation rate is calculated and the transverse piezoelectric potential is shown to be the dominant one. © 2013 American Physical Society. Fil:Intronati, G.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Tamborenea, P.I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2013 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10980121_v88_n4_p_Intronati http://hdl.handle.net/20.500.12110/paper_10980121_v88_n4_p_Intronati
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 study the effect of the Dresselhaus spin-orbit interaction on the electronic states and spin relaxation rates of cylindrical quantum dots defined on quantum wires having wurtzite lattice structure. The linear and cubic contributions of the bulk Dresselhaus spin-orbit coupling (SOC) are taken into account, along with the influence of a weak external magnetic field. The previously found analytic solution for the electronic states of cylindrical quantum dots with zinc blende lattice structures with Rashba interaction is extended to the case of quantum dots with wurtzite lattices. For the electronic states in InAs dots, we determine the spin texture and the effective g factor, which shows a scaling collapse when plotted as a function of an effective renormalized dot-size-dependent spin-orbit coupling strength. The acoustic-phonon-induced spin relaxation rate is calculated and the transverse piezoelectric potential is shown to be the dominant one. © 2013 American Physical Society.
author Intronati, Guido A.
Tamborenea, Pablo Ignacio
spellingShingle Intronati, Guido A.
Tamborenea, Pablo Ignacio
Spin-orbit effects in nanowire-based wurtzite semiconductor quantum dots
author_facet Intronati, Guido A.
Tamborenea, Pablo Ignacio
author_sort Intronati, Guido A.
title Spin-orbit effects in nanowire-based wurtzite semiconductor quantum dots
title_short Spin-orbit effects in nanowire-based wurtzite semiconductor quantum dots
title_full Spin-orbit effects in nanowire-based wurtzite semiconductor quantum dots
title_fullStr Spin-orbit effects in nanowire-based wurtzite semiconductor quantum dots
title_full_unstemmed Spin-orbit effects in nanowire-based wurtzite semiconductor quantum dots
title_sort spin-orbit effects in nanowire-based wurtzite semiconductor quantum dots
publishDate 2013
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10980121_v88_n4_p_Intronati
http://hdl.handle.net/20.500.12110/paper_10980121_v88_n4_p_Intronati
work_keys_str_mv AT intronatiguidoa spinorbiteffectsinnanowirebasedwurtzitesemiconductorquantumdots
AT tamboreneapabloignacio spinorbiteffectsinnanowirebasedwurtzitesemiconductorquantumdots
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