Multiple Fano effect in charge density wave systems

B. Horovitz, R. Österbacka, Z. V. Vardeny

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

A general framework for analyzing the multiple Fano effect (MFE) in charge density wave (CDW) systems is developed. The MFE occurs when IR active modes have frequencies above the CDW gap and interference between the IR modes and the electronic continuum leads to a series of resonances and anti-resonances. We parameterize the peaks and dips of the absorption by a set of bare frequencies, a pinning parameter and one interaction parameter. We apply this method to recently observed photoinduced absorption spectra of π-conjugated polymer films.

Original languageEnglish
Pages (from-to)179-183
Number of pages5
JournalSynthetic Metals
Volume141
Issue number1-2
DOIs
StatePublished - 18 Mar 2004

Keywords

  • Charge density waves
  • Conjugated polymers
  • Fano resonance

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