Straightforward Probing of Polarization and Spin-Resolved Transmission through Potential Barriers in Silicene
The low-energy physics of silicene is described by Dirac electrons with a strong spin-orbit interaction and its band structure can be controlled by an external electric field Ez. We evaluate the electronic transmission through single and double barriers in silicene as a function of the angle of inci...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in Condensed Matter Physics |
| Online Access: | http://dx.doi.org/10.1155/2018/3165829 |
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| author | Diana Meneses-Gustin Marcos R. S. Tavares |
| author_facet | Diana Meneses-Gustin Marcos R. S. Tavares |
| author_sort | Diana Meneses-Gustin |
| collection | DOAJ |
| description | The low-energy physics of silicene is described by Dirac electrons with a strong spin-orbit interaction and its band structure can be controlled by an external electric field Ez. We evaluate the electronic transmission through single and double barriers in silicene as a function of the angle of incidence θ, the electron energy E, and the strength of the field Ez. We find a spin-resolved transmission, reflected in the polarization P, and a conductance qualitatively different in some ranges of E than that in graphene. P exhibits quasiperiodic resonances versus θ in double-barrier structures. |
| format | Article |
| id | doaj-art-f0dfd2755d4441b4ae23ca1dfc46e7eb |
| institution | Kabale University |
| issn | 1687-8108 1687-8124 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Condensed Matter Physics |
| spelling | doaj-art-f0dfd2755d4441b4ae23ca1dfc46e7eb2025-02-03T06:10:54ZengWileyAdvances in Condensed Matter Physics1687-81081687-81242018-01-01201810.1155/2018/31658293165829Straightforward Probing of Polarization and Spin-Resolved Transmission through Potential Barriers in SiliceneDiana Meneses-Gustin0Marcos R. S. Tavares1Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, 09210-170 Santo André, SP, BrazilCentro de Ciências Naturais e Humanas, Universidade Federal do ABC, 09210-170 Santo André, SP, BrazilThe low-energy physics of silicene is described by Dirac electrons with a strong spin-orbit interaction and its band structure can be controlled by an external electric field Ez. We evaluate the electronic transmission through single and double barriers in silicene as a function of the angle of incidence θ, the electron energy E, and the strength of the field Ez. We find a spin-resolved transmission, reflected in the polarization P, and a conductance qualitatively different in some ranges of E than that in graphene. P exhibits quasiperiodic resonances versus θ in double-barrier structures.http://dx.doi.org/10.1155/2018/3165829 |
| spellingShingle | Diana Meneses-Gustin Marcos R. S. Tavares Straightforward Probing of Polarization and Spin-Resolved Transmission through Potential Barriers in Silicene Advances in Condensed Matter Physics |
| title | Straightforward Probing of Polarization and Spin-Resolved Transmission through Potential Barriers in Silicene |
| title_full | Straightforward Probing of Polarization and Spin-Resolved Transmission through Potential Barriers in Silicene |
| title_fullStr | Straightforward Probing of Polarization and Spin-Resolved Transmission through Potential Barriers in Silicene |
| title_full_unstemmed | Straightforward Probing of Polarization and Spin-Resolved Transmission through Potential Barriers in Silicene |
| title_short | Straightforward Probing of Polarization and Spin-Resolved Transmission through Potential Barriers in Silicene |
| title_sort | straightforward probing of polarization and spin resolved transmission through potential barriers in silicene |
| url | http://dx.doi.org/10.1155/2018/3165829 |
| work_keys_str_mv | AT dianamenesesgustin straightforwardprobingofpolarizationandspinresolvedtransmissionthroughpotentialbarriersinsilicene AT marcosrstavares straightforwardprobingofpolarizationandspinresolvedtransmissionthroughpotentialbarriersinsilicene |