The impacts of the quantum-dot confining potential on the spin-orbit effect

Abstract For a nanowire quantum dot with the confining potential modeled by both the infinite and the finite square wells, we obtain exactly the energy spectrum and the wave functions in the strong spin-orbit coupling regime. We find that regardless of how small the well height is, there are at leas...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Rui Li, Zhi-Hai Liu, Yidong Wu, C. S. Liu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d00a04bb995c4865905555834e18a39d
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:d00a04bb995c4865905555834e18a39d
record_format	dspace
spelling	oai:doaj.org-article:d00a04bb995c4865905555834e18a39d2021-12-02T11:41:15ZThe impacts of the quantum-dot confining potential on the spin-orbit effect10.1038/s41598-018-25692-22045-2322https://doaj.org/article/d00a04bb995c4865905555834e18a39d2018-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-25692-2https://doaj.org/toc/2045-2322Abstract For a nanowire quantum dot with the confining potential modeled by both the infinite and the finite square wells, we obtain exactly the energy spectrum and the wave functions in the strong spin-orbit coupling regime. We find that regardless of how small the well height is, there are at least two bound states in the finite square well: one has the σ x $${\mathscr{P}}$$ P = −1 symmetry and the other has the σ x $${\mathscr{P}}$$ P = 1 symmetry. When the well height is slowly tuned from large to small, the position of the maximal probability density of the first excited state moves from the center to x ≠ 0, while the position of the maximal probability density of the ground state is always at the center. A strong enhancement of the spin-orbit effect is demonstrated by tuning the well height. In particular, there exists a critical height $${V}_{0}^{c}$$ V0c , at which the spin-orbit effect is enhanced to maximal.Rui LiZhi-Hai LiuYidong WuC. S. LiuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-11 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Rui Li Zhi-Hai Liu Yidong Wu C. S. Liu The impacts of the quantum-dot confining potential on the spin-orbit effect
description	Abstract For a nanowire quantum dot with the confining potential modeled by both the infinite and the finite square wells, we obtain exactly the energy spectrum and the wave functions in the strong spin-orbit coupling regime. We find that regardless of how small the well height is, there are at least two bound states in the finite square well: one has the σ x $${\mathscr{P}}$$ P = −1 symmetry and the other has the σ x $${\mathscr{P}}$$ P = 1 symmetry. When the well height is slowly tuned from large to small, the position of the maximal probability density of the first excited state moves from the center to x ≠ 0, while the position of the maximal probability density of the ground state is always at the center. A strong enhancement of the spin-orbit effect is demonstrated by tuning the well height. In particular, there exists a critical height $${V}_{0}^{c}$$ V0c , at which the spin-orbit effect is enhanced to maximal.
format	article
author	Rui Li Zhi-Hai Liu Yidong Wu C. S. Liu
author_facet	Rui Li Zhi-Hai Liu Yidong Wu C. S. Liu
author_sort	Rui Li
title	The impacts of the quantum-dot confining potential on the spin-orbit effect
title_short	The impacts of the quantum-dot confining potential on the spin-orbit effect
title_full	The impacts of the quantum-dot confining potential on the spin-orbit effect
title_fullStr	The impacts of the quantum-dot confining potential on the spin-orbit effect
title_full_unstemmed	The impacts of the quantum-dot confining potential on the spin-orbit effect
title_sort	impacts of the quantum-dot confining potential on the spin-orbit effect
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/d00a04bb995c4865905555834e18a39d
work_keys_str_mv	AT ruili theimpactsofthequantumdotconfiningpotentialonthespinorbiteffect AT zhihailiu theimpactsofthequantumdotconfiningpotentialonthespinorbiteffect AT yidongwu theimpactsofthequantumdotconfiningpotentialonthespinorbiteffect AT csliu theimpactsofthequantumdotconfiningpotentialonthespinorbiteffect AT ruili impactsofthequantumdotconfiningpotentialonthespinorbiteffect AT zhihailiu impactsofthequantumdotconfiningpotentialonthespinorbiteffect AT yidongwu impactsofthequantumdotconfiningpotentialonthespinorbiteffect AT csliu impactsofthequantumdotconfiningpotentialonthespinorbiteffect
_version_	1718395427704799232

The impacts of the quantum-dot confining potential on the spin-orbit effect

Ejemplares similares