Electronic Raman scattering spectra in strongly correlated metals: cuprate superconductors and titanium oxides

T. Katsufuji; Y. Tokura

doi:10.1016/0921-4534(94)91798-1

Electronic Raman scattering spectra in strongly correlated metals: cuprate superconductors and titanium oxides

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Abstract

Electronic Raman scattering spectra for cuprate superconductors, La_2-xSr_xCuO₄, and prototypical strongly correlated metals, Sr_1-xLa_xTiO₃, were investigated and compared with each other. All the spectra can be reproduced by "extended" relaxational function with ω-dependent Γ. Electron correlation effect leads to strong ω dependence of Γ, which produces the spectral weight of χ″(ω) up to the high energy region. We also found anomalous symmetry dependence of the spectral intensity for La_2-xSr_xCuO₄ in the lightly doped region.

Original language	English
Pages (from-to)	1147-1148
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	235-240
Issue number	PART 2
DOIs	https://doi.org/10.1016/0921-4534(94)91798-1
Publication status	Published - 1994 Dec
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/0921-4534(94)91798-1

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title = "Electronic Raman scattering spectra in strongly correlated metals: cuprate superconductors and titanium oxides",

abstract = "Electronic Raman scattering spectra for cuprate superconductors, La2-xSrxCuO4, and prototypical strongly correlated metals, Sr1-xLaxTiO3, were investigated and compared with each other. All the spectra can be reproduced by {"}extended{"} relaxational function with ω-dependent Γ. Electron correlation effect leads to strong ω dependence of Γ, which produces the spectral weight of χ″(ω) up to the high energy region. We also found anomalous symmetry dependence of the spectral intensity for La2-xSrxCuO4 in the lightly doped region.",

author = "T. Katsufuji and Y. Tokura",

year = "1994",

month = dec,

doi = "10.1016/0921-4534(94)91798-1",

language = "English",

volume = "235-240",

pages = "1147--1148",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

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T1 - Electronic Raman scattering spectra in strongly correlated metals

T2 - cuprate superconductors and titanium oxides

AU - Katsufuji, T.

AU - Tokura, Y.

PY - 1994/12

Y1 - 1994/12

N2 - Electronic Raman scattering spectra for cuprate superconductors, La2-xSrxCuO4, and prototypical strongly correlated metals, Sr1-xLaxTiO3, were investigated and compared with each other. All the spectra can be reproduced by "extended" relaxational function with ω-dependent Γ. Electron correlation effect leads to strong ω dependence of Γ, which produces the spectral weight of χ″(ω) up to the high energy region. We also found anomalous symmetry dependence of the spectral intensity for La2-xSrxCuO4 in the lightly doped region.

AB - Electronic Raman scattering spectra for cuprate superconductors, La2-xSrxCuO4, and prototypical strongly correlated metals, Sr1-xLaxTiO3, were investigated and compared with each other. All the spectra can be reproduced by "extended" relaxational function with ω-dependent Γ. Electron correlation effect leads to strong ω dependence of Γ, which produces the spectral weight of χ″(ω) up to the high energy region. We also found anomalous symmetry dependence of the spectral intensity for La2-xSrxCuO4 in the lightly doped region.

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JO - Physica C: Superconductivity and its Applications

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IS - PART 2

ER -

Electronic Raman scattering spectra in strongly correlated metals: cuprate superconductors and titanium oxides

Abstract

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