Electron-phonon interaction in Sr2 RuO4 investigated by Raman scattering

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

doi:10.1016/S0921-4526(99)01091-1

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 journal › Conference article › peer-review

4 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 language	English (US)
Pages (from-to)	961-962
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	281-282
DOIs	https://doi.org/10.1016/S0921-4526(99)01091-1
State	Published - Jan 1 2000
Event	Yamada Conference LI - The International Conference on Strongly Correlated Electron Systems (SCES '99) - Nagano, Japan Duration: Aug 24 1999 → Aug 28 1999

All Science Journal Classification (ASJC) codes

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

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10.1016/S0921-4526(99)01091-1

Cite this

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title = "Electron-phonon interaction in Sr2 RuO4 investigated by Raman scattering",

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.",

author = "S. Nimori and S. Sakita and N. Ogita and Mao, {Z. Q.} and Y. Maeno and M. Udagawa",

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doi = "10.1016/S0921-4526(99)01091-1",

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journal = "Physica B: Condensed Matter",

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TY - JOUR

T1 - Electron-phonon interaction in Sr2 RuO4 investigated by Raman scattering

AU - Nimori, S.

AU - Sakita, S.

AU - Ogita, N.

AU - Mao, Z. Q.

AU - Maeno, Y.

AU - Udagawa, M.

PY - 2000/1/1

Y1 - 2000/1/1

N2 - 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.

AB - 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.

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U2 - 10.1016/S0921-4526(99)01091-1

DO - 10.1016/S0921-4526(99)01091-1

M3 - Conference article

AN - SCOPUS:0033873329

VL - 281-282

SP - 961

EP - 962

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

SN - 0921-4526

T2 - Yamada Conference LI - The International Conference on Strongly Correlated Electron Systems (SCES '99)

Y2 - 24 August 1999 through 28 August 1999

ER -

Electron-phonon interaction in Sr₂ RuO₄ investigated by Raman scattering

Abstract

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