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Автор Enrique Maciá
Автор Francisco Domínguez-Adame
Дата выпуска 1996-07-01
dc.description We numerically investigate the effects of inhomogeneities in the energy spectrum of aperiodic semiconductor superlattices, focusing our attention on Thue-Morse and Fibonacci sequences. In the absence of disorder, the corresponding electronic spectra are self-similar. The presence of a certain degree of randomness, due to imperfections occurring during the growth processes, gives rise to a progressive loss of quantum coherence, smearing out the finer details of the energy spectra predicted for perfect aperiodic superlattices and spurring the onset of electron localization. However, depending on the degree of disorder introduced, a critical size for the system exists, below which peculiar transport properties, related to the pre-fractal nature of the energy spectrum, may be measured.
Формат application.pdf
Издатель Institute of Physics Publishing
Название Can fractal-like spectra be experimentally observed in aperiodic superlattices?
Тип paper
DOI 10.1088/0268-1242/11/7/012
Electronic ISSN 1361-6641
Print ISSN 0268-1242
Журнал Semiconductor Science and Technology
Том 11
Первая страница 1041
Последняя страница 1045
Аффилиация Enrique Maciá; Departamento de Física de Materiales, Facultad de Físicas, Universidad Complutense, E-28040 Madrid, Spain
Аффилиация Francisco Domínguez-Adame; Departamento de Física de Materiales, Facultad de Físicas, Universidad Complutense, E-28040 Madrid, Spain
Выпуск 7

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