Effect of polarizability on excitation transfer in a disordered linear chain
Belousov M. V., Vol'f B. E., Ivanova E. A.
The state density of a quasi-one-dimensional vibrational exciton ω2 has been studied experimentally in isotopically mixed crystals K15N^4N, _x03. The probability for the transfer for an excitation through the light impurity is found to be much higher than that for transfer through a heavy impurity. This effect is explained in terms of an interference of vibrational and electronic states.