Line shifts in electron channeling radiation from lattice vibrations
- 22 July 1985
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 55 (4) , 406-409
- https://doi.org/10.1103/physrevlett.55.406
Abstract
A density matrix formulation of the dynamical theory of spectral shifts from correlated lattice vibrations in electron channeled radiation is presented. For lower-energy channeling, in which two bound levels exist in the channeling potential, positive shifts can be demonstrated. In the case of higher-energy channeling, where the number of bound levels increases, reduced positive shifts and negative shifts are shown. The theory suggests a novel method for experimentally determining a transverse, vibration correlation length in crystals.Keywords
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