Temperature dependence of the phonon structure in the high-temperature superconductor Bi2Sr2CaCu2O8 studied by infrared reflectance spectroscopy

K. Kamars, S. L. Herr, C. D. Porter, D. B. Tanner, S. Etemad, J. M. Tarascon

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

We have investigated a ceramic sample of the high-temperature superconductor Bi2Sr2CaCu2O8 (Tc=85 K) by infrared and visible reflectance spectroscopy at several temperatures both below and above the superconducting transition. We find that the temperature variation in the vibrational region is associated with minima or antiresonance features of the optical conductivity, instead of maxima, indicating strong Fano-type electron-phonon interaction and implying that the phonon structure in the infrared is strongly affected by the ab-plane response.

Original languageEnglish
Pages (from-to)11381-11383
Number of pages3
JournalPhysical Review B
Volume43
Issue number13
DOIs
Publication statusPublished - Jan 1 1991

ASJC Scopus subject areas

  • Condensed Matter Physics

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