Thermally activated infrared-active vibrational mode in BaBiO3

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

doi:10.1103/PhysRevB.43.8617

Thermally activated infrared-active vibrational mode in BaBiO3

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

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5 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 language	English (US)
Pages (from-to)	8617-8619
Number of pages	3
Journal	Physical Review B
Volume	43
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevB.43.8617
State	Published - 1991
Externally published	Yes

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1103/PhysRevB.43.8617

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title = "Thermally activated infrared-active vibrational mode in BaBiO3",

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.",

author = "Federici, {J. F.} and Greene, {B. I.} and Rapkine, {D. H.} and J. Orenstein",

year = "1991",

doi = "10.1103/PhysRevB.43.8617",

language = "English (US)",

volume = "43",

pages = "8617--8619",

journal = "Physical Review B",

issn = "0163-1829",

publisher = "American Institute of Physics",

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T1 - Thermally activated infrared-active vibrational mode in BaBiO3

AU - Federici, J. F.

AU - Greene, B. I.

AU - Rapkine, D. H.

AU - Orenstein, J.

PY - 1991

Y1 - 1991

N2 - 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.

AB - 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.

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DO - 10.1103/PhysRevB.43.8617

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JF - Physical Review B

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ER -

Thermally activated infrared-active vibrational mode in BaBiO3

Abstract

All Science Journal Classification (ASJC) codes

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