Out-of-phase plasmon excitations in the trilayer cuprate Bi2Sr2Ca2Cu3O10+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
DOI 10.1103/PhysRevB.111.165141 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
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+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.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2Ca2Cu3O10+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 110 | Pressure not reported | unknown |
Similar papers
Enhanced Superconducting Gap in the Outer CuO2 Plane of the Trilayer Cuprate (Hg, Re)Ba2Ca2Cu3O8+δ
similarity 0.93M. Horio et al.
Source status unknown — claims are unverified
Probing d-wave superconducting gap of the high-Tc cuprate Bi2Sr2Ca2Cu3O10+δ by resonant inelastic x-ray scattering
similarity 0.93Kunhao Li et al.
Source status unknown — claims are unverified
Temperature-Dependent Ellipsometry Measurements of Partial Coulomb Energy in Superconducting Cuprates
similarity 0.93J. Levallois et al.
Source status unknown — claims are unverified
Imaging the Essential Role of Spin Fluctuations in High-Tc Superconductivity
similarity 0.93N. Jenkins et al.
Source status unknown — claims are unverified
Double pair breaking peak in Raman scattering spectra of the triple-layer cuprate Bi2Sr2Ca2Cu3O10+z
similarity 0.93G. Vincini et al.
Source status unknown — claims are unverified
Energy scale directly related to superconductivity in high-Tc cuprates: Universality from the temperature-dependent angle-resolved photoemission of Bi2Sr2Ca2Cu3O10+δ
similarity 0.93Shin-ichiro Ideta et al.
Source status unknown — claims are unverified