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  1. 原著論文

Out-of-phase plasmon excitations in the trilayer cuprate Bi2⁢Sr2⁢Ca2⁢Cu3⁢O10+𝛿

https://repo.qst.go.jp/records/2002997
https://repo.qst.go.jp/records/2002997
f8e07a66-81a2-46a1-95ca-058c478b42a4
アイテムタイプ 学術雑誌論文 / Journal Article(1)
公開日 2026-03-12
タイトル
タイトル Out-of-phase plasmon excitations in the trilayer cuprate Bi2⁢Sr2⁢Ca2⁢Cu3⁢O10+𝛿
言語 en
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
著者 S. Nakata

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S. Nakata

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University of Hyogo

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University of Hyogo

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M. Bejas

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M. Bejas

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UNR-CONICET

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UNR-CONICET

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J. Okamoto

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J. Okamoto

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National Synchrotron Radiation Research Center

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National Synchrotron Radiation Research Center

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Yamamoto Kohei

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Yamamoto Kohei

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D. Shiga

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D. Shiga

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Tohoku University

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Tohoku University

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R. Takahashi

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R. Takahashi

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University of Hyogo

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University of Hyogo

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H. Y. Huang

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H. Y. Huang

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National Synchrotron Radiation Research Center

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National Synchrotron Radiation Research Center

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H. Kumigashira

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H. Kumigashira

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Tohoku University

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Tohoku University

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H. Wadati

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H. Wadati

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University of Hyogo

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University of Hyogo

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Miyawaki Jun

× Miyawaki Jun

Miyawaki Jun

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S. Ishida

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S. Ishida

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National Institute of Advanced Industrial Science and Technology

× National Institute of Advanced Industrial Science and Technology

National Institute of Advanced Industrial Science and Technology

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H. Eisaki

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H. Eisaki

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National Institute of Advanced Industrial Science and Technology

× National Institute of Advanced Industrial Science and Technology

National Institute of Advanced Industrial Science and Technology

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A. Fujimori

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A. Fujimori

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National Synchrotron Radiation Research Center

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National Synchrotron Radiation Research Center

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A. Greco

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A. Greco

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UNR-CONICET

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UNR-CONICET

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H. Yamase

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H. Yamase

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NIMS

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NIMS

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D. J. Huang

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D. J. Huang

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National Synchrotron Radiation Research Center

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National Synchrotron Radiation Research Center

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抄録
内容記述タイプ Abstract
内容記述 Within a homologous series of cuprate superconductors, variations in the stacking of CuO2 layers influence the collective charge dynamics through the long-range Coulomb interactions. We use O 𝐾-edge resonant inelastic x-ray scattering to reveal plasmon excitations in the optimally doped trilayer Bi2⁢Sr2⁢Ca2⁢Cu3⁢O10+𝛿. The observed plasmon exhibits nearly 𝑞𝑧-independent dispersion and a large excitation gap of approximately 300 meV. This mode is primarily ascribed to the 𝜔− mode, where the charge density on the outer CuO2 sheets oscillates out of phase while the density in the inner sheet remains unaltered at 𝑞𝑧=0. The intensity of the acoustic 𝜔3 mode is relatively weak and becomes vanishingly small near (𝑞𝑥,𝑞𝑦)=(0,0). This result highlights a qualitative change in the eigenmode of the dominant low-energy plasmon with the number of CuO2 layers.
書誌情報 Physical Review B

巻 111, p. 165141, 発行日 2025-04
DOI
識別子タイプ DOI
関連識別子 10.1103/PhysRevB.111.165141
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