Effect Of Lattice Zero-Point Motion On Electronic-Properties Of The Peierls-Frohlich State

TitleEffect Of Lattice Zero-Point Motion On Electronic-Properties Of The Peierls-Frohlich State
Publication TypeJournal Article
Year of Publication1992
AuthorsMcKenzie, Ross H., and Wilkins J. W.
JournalPhysical Review Letters
Volume69
Issue7
Pagination1085–1088
AbstractWe study the consequences of the previously overlooked fact that in most quasi-one-dimensional materials with a Peierls-Frohlich ground state the lattice zero-point motion is comparable to the lattice distortion. The density of states deviates significantly from that of a rigid lattice, containing a tail of strongly localized states below the gap. Moreover, thermal lattice motion causes the tail to increase significantly with temperature. This is consistent with the subgap optical absorption seen in these materials.