Quasi-localized states and peculiarities of resonance scattering of particles on defects in semiconductor crystals with band structure of energy spectrum

Peculiarities of the particle-plane defect interaction in semiconductor crystals are investigated within the framework of the band energy spectrum. It is shown that generalized localized states exist at defects. In the system under consideration a non-square energy-momentum interrelationship leads to quasi-localized state appearance. Peculiarities of the particle scattering at semiconductor interfaces are analyzed. The total reflection phenomenon may occur if the coincidence of the incident particle energy and the quasi-localized state energy takes place. It is found that a weak dissipation of the particle energy in the crystal leads to the instability of the resonance condition of the total reflection