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VOLUME 43 | ISSUE 8 | PAGE 511
Drift velocity for acoustic polarons in 1D conductors
The drift velocity v0(E) is calculated for an acoustic polaron with strong coupling in a ID polymer chain. The limiting cases of low and high temperatures are analyzed. The functional dependence v0(E) exhibits a characteristic saturation in strong fields near the sound velocity s. This behavior of the drift velocity was recently observed in polydiacetylene, PDA [K. J. Donovan and E. G. Wilson, J. Phys. 18, L51 (1985); Philos. Mag. B44, 9, 31 (1981)].




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