Effects of Effective Mass Discontinuity on the Conductance of Three-Dimensional Quantum Wires
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| Format: | Artículo científico |
| Sprache: | en |
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Sociedade Brasileira de Física
2006
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| _version_ | 1876481052104458240 |
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| author | Luis C. O. Dacal |
| author_facet | Luis C. O. Dacal |
| contents | Effects of Effective Mass Discontinuity on the Conductance of Three-Dimensional Quantum Wires Luis C. O. Dacal Erasmo A. de Andrada e Silva Física, Astronomía y Matemáticas Quantum wire Ballistic transport Effective mass discontinuity We calculate the conductance of three-dimensional semiconductor quantum wires considering different effectivemasses in the contacts and in the channel. We show that, with respect to the case with equal masses in thechannel and in the contacts, the amplitude of the conductance oscillations increases if the electron effective massin the channel is larger and decreases if it is smaller than in the contacts. Effects on the density of probabilityare also shown. These effects of the effective mass discontinuity are explained in terms of kinetic confinementand transmission coefficient modulation. 2006 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46436530 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.3B Vol.36 |
| format | Artículo científico |
| id | redalyc_46436530 |
| institution | Redalyc |
| language | en |
| publishDate | 2006 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | Effects of Effective Mass Discontinuity on the Conductance of Three-Dimensional Quantum Wires Luis C. O. Dacal Física, Astronomía y Matemáticas Quantum wire Ballistic transport Effective mass discontinuity Effects of Effective Mass Discontinuity on the Conductance of Three-Dimensional Quantum Wires Luis C. O. Dacal Erasmo A. de Andrada e Silva Física, Astronomía y Matemáticas Quantum wire Ballistic transport Effective mass discontinuity We calculate the conductance of three-dimensional semiconductor quantum wires considering different effectivemasses in the contacts and in the channel. We show that, with respect to the case with equal masses in thechannel and in the contacts, the amplitude of the conductance oscillations increases if the electron effective massin the channel is larger and decreases if it is smaller than in the contacts. Effects on the density of probabilityare also shown. These effects of the effective mass discontinuity are explained in terms of kinetic confinementand transmission coefficient modulation. 2006 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46436530 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.3B Vol.36 |
| title | Effects of Effective Mass Discontinuity on the Conductance of Three-Dimensional Quantum Wires |
| topic | Física, Astronomía y Matemáticas Quantum wire Ballistic transport Effective mass discontinuity |
| url | https://www.redalyc.org/articulo.oa?id=46436530 |