Electron-phonon interaction in Sr2 RuO4 investigated by Raman scattering

S. Nimori, S. Sakita, N. Ogita, Z. Q. Mao, Y. Maeno, M. Udagawa

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations

Abstract

Electron-phonon interaction of the apical oxygen vibration at 550 cm-1 for Sr2 RuO4 has been investigated by the interference-model analysis between the electronic continuum and phonon excitation (Fano effect). The peak intensity of the apical oxygen vibration is suppressed for the (a,a) spectrum, compared with (c,c). This decrease is understood by the anisotropy of polarizability and the existence of electron-phonon interaction. Furthermore, the interaction also depends on the propagating direction of the phonon. That is, the electron-phonon interaction of the phonon propagating along the conduction plane is larger than that along out of plane. These results are related to the two-dimensional electronic character of Sr2 RuO4.

Original languageEnglish (US)
Pages (from-to)961-962
Number of pages2
JournalPhysica B: Condensed Matter
Volume281-282
DOIs
StatePublished - Jan 1 2000
EventYamada Conference LI - The International Conference on Strongly Correlated Electron Systems (SCES '99) - Nagano, Japan
Duration: Aug 24 1999Aug 28 1999

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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