Superlattice Magnetophonon Resonances in Strongly Coupled InAs/GaSb Superlattices
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superlatticegasbinasmagnetophononminibandresonantsuperlatticesacross
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We report an experimental study of miniband magnetoconduction in semiconducting InAs/GaSb superlattices. For samples with miniband widths below the longitudinal optical phonon energy we identify a new superlattice magnetophonon resonance (SLMPR) caused by resonant scattering of electrons across the mini-Brillouin zone. This new resonant feature arises directly from the drift velocity characteristics of the superlattice dispersion and total magnetic quantisation of the superlattice Landau level minibands.
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