Thermally activated infrared-active vibrational mode in BaBiO3

J. F. Federici, B. I. Greene, D. H. Rapkine, J. Orenstein

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Thermally modulated infrared-reflectivity spectra in BaBiO3 are measured. The observation of an infrared-active vibrational mode at 500 cm-1 and an associated electronic excitation at 1.4 eV is consistent with the conjecture of self-localized polarons. However, the estimated polaron mass is anomalously small, suggesting that oscillator strength has transferred from the optical phonons to the infrared-active vibrational mode.

Original languageEnglish (US)
Pages (from-to)8617-8619
Number of pages3
JournalPhysical Review B
Volume43
Issue number10
DOIs
StatePublished - Jan 1 1991
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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