Shubnikov-de Haas Oscillations in Digital Magnetic Heterostructures
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| Natura: | Artículo científico |
| Lingua: | en |
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Sociedade Brasileira de Física
2004
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| _version_ | 1876478171591737344 |
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| author | Henrique J. P. Freire |
| author_facet | Henrique J. P. Freire |
| contents | Shubnikov-de Haas Oscillations in Digital Magnetic Heterostructures Henrique J. P. Freire J. Carlos Egues Física, Astronomía y Matemáticas In this paper we theoretically investigate the magnetic-field and temperature dependence of the Shubnikov-deHaas oscillations in group II-VI modulation-doped Digital Magnetic Heterostructures. We self-consistentlysolve the effective-mass Schr¨odinger equation within the Hartree approximation and calculate the electronicstructure and the magneto-transport properties. Our results show i) a shift of the Shubnikov-de Haas minima tolower magnetic fields with increasing temperature, and ii) an anomalous oscillation which develops when twoopposite Landau levels cross near the Fermi energy. Both of these are consistent with recent magneto-transportmeasurements in such heterostructures [R. Knobel et al., Phys. Rev. B 65, 235327 (2002)]. 2004 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46434419 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.2B Vol.34 |
| format | Artículo científico |
| id | redalyc_46434419 |
| institution | Redalyc |
| language | en |
| publishDate | 2004 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | Shubnikov-de Haas Oscillations in Digital Magnetic Heterostructures Henrique J. P. Freire Física, Astronomía y Matemáticas Shubnikov-de Haas Oscillations in Digital Magnetic Heterostructures Henrique J. P. Freire J. Carlos Egues Física, Astronomía y Matemáticas In this paper we theoretically investigate the magnetic-field and temperature dependence of the Shubnikov-deHaas oscillations in group II-VI modulation-doped Digital Magnetic Heterostructures. We self-consistentlysolve the effective-mass Schr¨odinger equation within the Hartree approximation and calculate the electronicstructure and the magneto-transport properties. Our results show i) a shift of the Shubnikov-de Haas minima tolower magnetic fields with increasing temperature, and ii) an anomalous oscillation which develops when twoopposite Landau levels cross near the Fermi energy. Both of these are consistent with recent magneto-transportmeasurements in such heterostructures [R. Knobel et al., Phys. Rev. B 65, 235327 (2002)]. 2004 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46434419 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.2B Vol.34 |
| title | Shubnikov-de Haas Oscillations in Digital Magnetic Heterostructures |
| topic | Física, Astronomía y Matemáticas |
| url | https://www.redalyc.org/articulo.oa?id=46434419 |