The special role of above-the-barrier states in the channeling of electrons in crystals
Kagan Yu. , Babakhanyan E.A. , Kononets Yu.V.
It is shown that an appreciable number of relativistic electrons propagate through a crystal as a result of channeling. These electrons in the low-lying, above-the-barrier states experience anomalously weak inelastic interaction with the nuclei, multiple scattering and a small energy loss.