Out-of-phase plasmon excitations in the trilayer cuprate 
<math>
  <mrow>
    <msub>
      <mi>Bi</mi>
      <mn>2</mn>
    </msub>
    <msub>
      <mi>Sr</mi>
      <mn>2</mn>
    </msub>
    <msub>
      <mi>Ca</mi>
      <mn>2</mn>
    </msub>
    <msub>
      <mi>Cu</mi>
      <mn>3</mn>
    </msub>
    <msub>
      <mi>O</mi>
      <mrow>
        <mn>10</mn>
        <mo>+</mo>
        <mi>δ</mi>
      </mrow>
    </msub>
  </mrow>
</math>

S. Nakata; M. Bejas; J. Okamoto; K. Yamamoto; D. Shiga; R. Takahashi; H. Y. Huang; H. Kumigashira; H. Wadati; J. Miyawaki; S. Ishida; H. Eisaki; A. Fujimori; A. Greco; H. Yamase; D. J. Huang; H. Suzuki

doi:10.1103/physrevb.111.165141

Article Out-of-phase plasmon excitations in the trilayer cuprate

{Bi}_{2} {Sr}_{2} {Ca}_{2} {Cu}_{3} O_{10 + δ}

S. Nakata ; M. Bejas ; J. Okamoto ; K. Yamamoto ; D. Shiga ; R. Takahashi ; H. Y. Huang ; H. Kumigashira ; H. Wadati ; J. Miyawaki ; S. Ishida ; H. Eisaki ; A. Fujimori ; A. Greco ; H. Yamase ; D. J. Huang ; H. Suzuki

Download file (2.37 MB)
Download as zip (2.27 MB)

Collection

Citation

S. Nakata, M. Bejas, J. Okamoto, K. Yamamoto, D. Shiga, R. Takahashi, H. Y. Huang, H. Kumigashira, H. Wadati, J. Miyawaki, S. Ishida, H. Eisaki, A. Fujimori, A. Greco, H. Yamase, D. J. Huang, H. Suzuki. Out-of-phase plasmon excitations in the trilayer cuprate

{Bi}_{2} {Sr}_{2} {Ca}_{2} {Cu}_{3} O_{10 + δ}

. Physical Review B. 2025, 111 (16), 165141. https://doi.org/10.1103/physrevb.111.165141

(BibTeX)

Description:

(abstract)

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 Bi2Sr2Ca2Cu3O10+delta. The observed plasmon exhibits nearly qz-independent dispersion and a large excitation gap of approximately 300 meV. This mode is primarily ascribed to the omega− 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 omega3 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.

Rights:

In Copyright

©2025 American Physical Society

Keyword: プラズマ振動, 共鳴非弾性X線散乱, 層状構造物質, 銅酸化物高温超伝導体, ナノテラス

Date published: 2025-04-21

Publisher: American Physical Society (APS)

Journal:

Physical Review B (ISSN: 24699950) vol. 111 issue. 16 165141

Funding:

Japan Society for the Promotion of Science JP19H05823
Japan Society for the Promotion of Science JP22K13994
Japan Society for the Promotion of Science JP20H01856
Japan Society for the Promotion of Science JP22K03535
Japan Society for the Promotion of Science JP20H01856
National Science and Technology Council NSTC 113-2112-M-007-033

Manuscript type: Author's version (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.5487

First published URL: https://doi.org/10.1103/physrevb.111.165141

Related item:

Other identifier(s):

Contact agent:

Updated at: 2025-05-20 08:30:40 +0900

Published on MDR: 2025-05-20 08:18:57 +0900

Filename	Size
Filename	Bi2223_Plasmon_PRB.pdf (Thumbnail) application/pdf	Size	2.37 MB	Detail