Effective Masses for Donor Binding Energies in Non-Magnetic and Magnetic QuantumWell Systems: Effect of Magnetic Field
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| Format: | Artículo científico |
| Langue: | en |
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Sociedade Brasileira de Física
2007
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| _version_ | 1876430066089459712 |
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| author | S. Rajashabala |
| author_facet | S. Rajashabala |
| contents | Effective Masses for Donor Binding Energies in Non-Magnetic and Magnetic QuantumWell Systems: Effect of Magnetic Field S. Rajashabala K. Navaneethakrishnan Física, Astronomía y Matemáticas Quantum wells Donor binding energies in quantum well systems using position dependent effective masses are obtained.Results are provided for GaAs-Ga1¡xAlxAs and the semimagnetic CdTe-Cd1¡x MnxTe systems. In the latterthe barrier height reduces in a magnetic field. Using the available experimental data the variations of the barrierheight with magnetic field has been obtained using a simple model. Our results are in good agreement withsimilar works in the literature in the case of constant effective mass for the donor electron. However, in the caseof the semi magnetic system and in the case of the position dependent effective mass, the results obtained areshown to be appreciably different for narrow well dimensions. The validity of the effective mass approximationin the case of applied magnetic field is also critically examined. 2007 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46437711 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.37 |
| format | Artículo científico |
| id | redalyc_46437711 |
| institution | Redalyc |
| language | en |
| publishDate | 2007 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | Effective Masses for Donor Binding Energies in Non-Magnetic and Magnetic QuantumWell Systems: Effect of Magnetic Field S. Rajashabala Física, Astronomía y Matemáticas Quantum wells Effective Masses for Donor Binding Energies in Non-Magnetic and Magnetic QuantumWell Systems: Effect of Magnetic Field S. Rajashabala K. Navaneethakrishnan Física, Astronomía y Matemáticas Quantum wells Donor binding energies in quantum well systems using position dependent effective masses are obtained.Results are provided for GaAs-Ga1¡xAlxAs and the semimagnetic CdTe-Cd1¡x MnxTe systems. In the latterthe barrier height reduces in a magnetic field. Using the available experimental data the variations of the barrierheight with magnetic field has been obtained using a simple model. Our results are in good agreement withsimilar works in the literature in the case of constant effective mass for the donor electron. However, in the caseof the semi magnetic system and in the case of the position dependent effective mass, the results obtained areshown to be appreciably different for narrow well dimensions. The validity of the effective mass approximationin the case of applied magnetic field is also critically examined. 2007 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46437711 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.37 |
| title | Effective Masses for Donor Binding Energies in Non-Magnetic and Magnetic QuantumWell Systems: Effect of Magnetic Field |
| topic | Física, Astronomía y Matemáticas Quantum wells |
| url | https://www.redalyc.org/articulo.oa?id=46437711 |