Spin-related tunneling through a nanostructured electric-magnetic barrier on the surface of a topological insulator

We investigate quantum tunneling through a single electric and/or magnetic barrier on the surface of a three-dimensional topological insulator. We found that (1) the propagating behavior of electrons in such system exhibits a strong dependence on the direction of the incident electron wavevector and...

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Detalles Bibliográficos
Autores principales: Wu, Zhenhua, Li, Jun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer 2012
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3292916/
https://www.ncbi.nlm.nih.gov/pubmed/22283846
http://dx.doi.org/10.1186/1556-276X-7-90
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author Wu, Zhenhua
Li, Jun
author_facet Wu, Zhenhua
Li, Jun
author_sort Wu, Zhenhua
collection PubMed
description We investigate quantum tunneling through a single electric and/or magnetic barrier on the surface of a three-dimensional topological insulator. We found that (1) the propagating behavior of electrons in such system exhibits a strong dependence on the direction of the incident electron wavevector and incident energy, giving the possibility to construct a wave vector and/or energy filter; (2) the spin orientation can be tuned by changing the magnetic barrier structure as well as the incident angles and energies. PACS numbers: 72.25.Dc; 73.20.-r; 73.23.-b; 75.70.-i.
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spelling pubmed-32929162012-03-06 Spin-related tunneling through a nanostructured electric-magnetic barrier on the surface of a topological insulator Wu, Zhenhua Li, Jun Nanoscale Res Lett Nano Express We investigate quantum tunneling through a single electric and/or magnetic barrier on the surface of a three-dimensional topological insulator. We found that (1) the propagating behavior of electrons in such system exhibits a strong dependence on the direction of the incident electron wavevector and incident energy, giving the possibility to construct a wave vector and/or energy filter; (2) the spin orientation can be tuned by changing the magnetic barrier structure as well as the incident angles and energies. PACS numbers: 72.25.Dc; 73.20.-r; 73.23.-b; 75.70.-i. Springer 2012-01-27 /pmc/articles/PMC3292916/ /pubmed/22283846 http://dx.doi.org/10.1186/1556-276X-7-90 Text en Copyright ©2012 Wu and Li; licensee Springer. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Nano Express
Wu, Zhenhua
Li, Jun
Spin-related tunneling through a nanostructured electric-magnetic barrier on the surface of a topological insulator
title Spin-related tunneling through a nanostructured electric-magnetic barrier on the surface of a topological insulator
title_full Spin-related tunneling through a nanostructured electric-magnetic barrier on the surface of a topological insulator
title_fullStr Spin-related tunneling through a nanostructured electric-magnetic barrier on the surface of a topological insulator
title_full_unstemmed Spin-related tunneling through a nanostructured electric-magnetic barrier on the surface of a topological insulator
title_short Spin-related tunneling through a nanostructured electric-magnetic barrier on the surface of a topological insulator
title_sort spin-related tunneling through a nanostructured electric-magnetic barrier on the surface of a topological insulator
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3292916/
https://www.ncbi.nlm.nih.gov/pubmed/22283846
http://dx.doi.org/10.1186/1556-276X-7-90
work_keys_str_mv AT wuzhenhua spinrelatedtunnelingthroughananostructuredelectricmagneticbarrieronthesurfaceofatopologicalinsulator
AT lijun spinrelatedtunnelingthroughananostructuredelectricmagneticbarrieronthesurfaceofatopologicalinsulator

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