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Optical transitions in small band offset superlattices are studied within the framework of the nearly free electron approximation, in which the weak superlattice potential is treated as a perturbation. Interband selection rules are derived for transitions involving conduction and valence band states at the superlattice Brillouin zone center and the zone edge. It is found that a number of new transitions...
We explore the possibility of using electron paramagnetic resonance (EPR) of Mn^{++} for measuring uniaxial strain in II-VI superlattices. This work is motivated by the fact that the EPR spectrum of Mn^{++} is very strongly affected by crystalline fields. Changes in a crystalline field which arise from strain are thus automatically expected to have a profound effect on the EPR spectrum. Consistent...
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