Theory of oxygen 1s resonant X-ray emission in edge-share-type quasi-one-dimensional cuprates

Kozo Okada; Akio Kotani

doi:10.1143/JPSJ.72.797

Theory of oxygen 1s resonant X-ray emission in edge-share-type quasi-one-dimensional cuprates

Kozo Okada, Akio Kotani

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

The many-body nature of O 1s resonant X-ray emission spectroscopy (RXES) in edge-share-type quasi-one-dimensional cuprates with hole doping is discussed on the basis of finite-size cluster model calculations. In the case of hole-doped systems, the line shape of O 1s RXES strongly depends on the incident X-ray energy (ω_in). This is just a manifestation of state-selectivity of RXES. When ω_in is tuned at the upper Hubbard band, we observe inelastic scattering peaks due to the Zhang-Rice singlet (ZRS) and dd excitations besides the O 2p main band emission. On the other hand, when ω_in is tuned at the ZRS band, the charge-transfer excitation edge region and the dd excitation peaks are significantly enhanced in accordance with the recent experiment for Ca_2+xY_2-xCu ₅O₁₀.

Original language	English
Pages (from-to)	797-800
Number of pages	4
Journal	journal of the physical society of japan
Volume	72
Issue number	4
DOIs	https://doi.org/10.1143/JPSJ.72.797
Publication status	Published - Apr 2003

Keywords

Cuprate
Electron correlation
Resonant X-ray emission spectroscopy
X-ray absorption

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1143/JPSJ.72.797

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title = "Theory of oxygen 1s resonant X-ray emission in edge-share-type quasi-one-dimensional cuprates",

abstract = "The many-body nature of O 1s resonant X-ray emission spectroscopy (RXES) in edge-share-type quasi-one-dimensional cuprates with hole doping is discussed on the basis of finite-size cluster model calculations. In the case of hole-doped systems, the line shape of O 1s RXES strongly depends on the incident X-ray energy (ωin). This is just a manifestation of state-selectivity of RXES. When ωin is tuned at the upper Hubbard band, we observe inelastic scattering peaks due to the Zhang-Rice singlet (ZRS) and dd excitations besides the O 2p main band emission. On the other hand, when ωin is tuned at the ZRS band, the charge-transfer excitation edge region and the dd excitation peaks are significantly enhanced in accordance with the recent experiment for Ca2+xY2-xCu 5O10.",

keywords = "Cuprate, Electron correlation, Resonant X-ray emission spectroscopy, X-ray absorption",

author = "Kozo Okada and Akio Kotani",

year = "2003",

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doi = "10.1143/JPSJ.72.797",

language = "English",

volume = "72",

pages = "797--800",

journal = "Journal of the Physical Society of Japan",

issn = "0031-9015",

publisher = "Physical Society of Japan",

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T1 - Theory of oxygen 1s resonant X-ray emission in edge-share-type quasi-one-dimensional cuprates

AU - Okada, Kozo

AU - Kotani, Akio

PY - 2003/4

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N2 - The many-body nature of O 1s resonant X-ray emission spectroscopy (RXES) in edge-share-type quasi-one-dimensional cuprates with hole doping is discussed on the basis of finite-size cluster model calculations. In the case of hole-doped systems, the line shape of O 1s RXES strongly depends on the incident X-ray energy (ωin). This is just a manifestation of state-selectivity of RXES. When ωin is tuned at the upper Hubbard band, we observe inelastic scattering peaks due to the Zhang-Rice singlet (ZRS) and dd excitations besides the O 2p main band emission. On the other hand, when ωin is tuned at the ZRS band, the charge-transfer excitation edge region and the dd excitation peaks are significantly enhanced in accordance with the recent experiment for Ca2+xY2-xCu 5O10.

AB - The many-body nature of O 1s resonant X-ray emission spectroscopy (RXES) in edge-share-type quasi-one-dimensional cuprates with hole doping is discussed on the basis of finite-size cluster model calculations. In the case of hole-doped systems, the line shape of O 1s RXES strongly depends on the incident X-ray energy (ωin). This is just a manifestation of state-selectivity of RXES. When ωin is tuned at the upper Hubbard band, we observe inelastic scattering peaks due to the Zhang-Rice singlet (ZRS) and dd excitations besides the O 2p main band emission. On the other hand, when ωin is tuned at the ZRS band, the charge-transfer excitation edge region and the dd excitation peaks are significantly enhanced in accordance with the recent experiment for Ca2+xY2-xCu 5O10.

KW - Cuprate

KW - Electron correlation

KW - Resonant X-ray emission spectroscopy

KW - X-ray absorption

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ER -

Theory of oxygen 1s resonant X-ray emission in edge-share-type quasi-one-dimensional cuprates

Abstract

Keywords

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