Measurement of the miniband width in a superlattice with interband absorption in a magnetic field parallel to the layers |
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| Authors: | G. Belle J.C. Maan G. Weimann |
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| Affiliation: | Max Planck Institut für Festkörperforschung, Hochfeld Magnetlabor, 166X F38042, Grenoble-Cedex, France;Forschungsinstitut der Deutschen Bundespost, Am Kavalleriesand 3, D-6100 Darmstadt, West Germany |
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| Abstract: | Interband magnetoabsorption measurements of a superlattice with GaAs/ GaAlAs layers, thin compared to the cyclotron radius, in a magnetic field parallel to the layers show interband Landau level transitions exclusively for radiation energies falling within the hole and the electron subband width. The data are quantitatively explained with energy levels of a Kronig-Penney model in a parallel magnetic field, and permit a direct observation of the superlattice bandwidth. |
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| Keywords: | Author to whom all correspondence should be made. |
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