1996
DOI: 10.1016/s0375-9601(96)00684-6
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Quasi-energy spectrum of multiband superlattices in dc-ac electric fields

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Cited by 7 publications
(2 citation statements)
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“…In the tightbinding limit, where the well depth is large enough to consider only nearest-neighbor coupling, a full band collapse occurs in which the bandwidth shrinks to zero and the hitherto delocalized Bloch states become localized [1,2]. In this experiment, coupling to non-nearest neighbors as well as the presence of higher bands complicate the band evolution and prevent a complete collapse [6].…”
mentioning
confidence: 92%
“…In the tightbinding limit, where the well depth is large enough to consider only nearest-neighbor coupling, a full band collapse occurs in which the bandwidth shrinks to zero and the hitherto delocalized Bloch states become localized [1,2]. In this experiment, coupling to non-nearest neighbors as well as the presence of higher bands complicate the band evolution and prevent a complete collapse [6].…”
mentioning
confidence: 92%
“…Sendo interessante a observação de efeitos dos campos AC intensos sobre duas minibandas muito próximas com respeito a freqüência do campo AC, mas levando em conta o fato de que estados ligados em poços quânticos terem uma diferença de energia até da ordem de centenas de me V, levou a Hone e Holthaus sugerir a proposta de superredes dimerizadas constituidas por dois poços de largura diferentes que se repetem periódicamente, gerando assim duas minibandas muito próximas formadas pelos estados fundamentais dos poços de larguras diferentes. O interesse no efeito de campos AC intensos na estrutura eletrônica de uma heteroestrutura, tornou-se importante nos últimos anos com a contribuição pioneira de Holthaus e Hone [24,35,36,37,28,25] e o aporte muito significativo de Xian-Geng Zhao [38,39,40,41,42,43,44,45,46,47] durante os anos 90.…”
Section: Optica De Sistemas Atômicosunclassified