Enhancement of the electronic density of states by a polaron mechanism

O. Entin-Wohlman, H. Gutfreund, M. Weger

Research output: Contribution to journalArticlepeer-review

Abstract

The spin susceptibility of TTF-TCNQ and other organic metals increases with temperature by about a factor of two between 100 and 300K. This increase is attributed to the narrowing of the band due to strong electron-phonon interaction. The strong electron-phonon interaction leads to phonon dressing of the electrons. A theory is developed to calculate the electronic density of states using Holstein polaron theory. The effect is present even when the phonon frequency is somewhat lower than the electronic hopping integral.

Original languageEnglish
Article number008
Pages (from-to)5763-5772
Number of pages10
JournalJournal of Physics C: Solid State Physics
Volume15
Issue number28
DOIs
StatePublished - 1982
Externally publishedYes

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