Abstract
We study the dynamics of non-adiabatic Holstein-type impurities embedded in an infinite linear chain. The impurities are modelled as Einstein oscillators coupled to specific sites of an infinite one-dimensional tight-binding host. We present numerical evidence providing bounds for the onset of self-trapping that depend critically on the initial conditions of the oscillators. We show that, in general, small but finite oscillator masses do not substantially change the self-trapped character of the states. For intermediate as well as large oscillator masses self-trapping can still occur for some initial oscillator preparations.
Original language | English |
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Article number | 008 |
Pages (from-to) | 8689-8702 |
Number of pages | 14 |
Journal | Journal of Physics: Condensed Matter |
Volume | 5 |
Issue number | 46 |
DOIs | |
Publication status | Published - Dec 1 1993 |
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics