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Quasi-localized states and resonance scattering of particles by defects in semiconductor crystals with band spectrum structure
Authors:S E Savotchenko
Institution:(1) Belgorod State University, Belgorod, 308007, Russia
Abstract:The interaction of particles with planar defects in semiconductor crystal was studied on the basis of a model of the band energy-spectrum structure. Generalized localized states are shown to exist in the vicinity of defects. It is also shown that nonquadratic dispersion law gives rise to quasi-localized states. Particle scattering by the semiconductor boundary was analyzed. The condition for the total reflection from the interface is formulated as follows: the incident-particle energy should be equal to the energy of a quasi-localized state. It was found that a weak dissipation of particle energy in the crystal causes instability of the resonance condition for the total reflection.
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