Momentum Dependence of Charge Excitations in the Electron-Doped Superconductor Nd1.85Ce0.15CuO4: a RIXS Study

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dc.creatorIshii, K.
dc.creatorTsutsui, K.
dc.creatorEndoh, Y.
dc.creatorTohyama, T.
dc.creatorMaekawa, S.
dc.creatorHoesch, M.
dc.creatorKuzushita, K.
dc.creatorTsubota, M.
dc.creatorInami, T.
dc.creatorMizuki, J.
dc.creatorMurakami, Y.
dc.creatorYamada, K.
dc.date2004-12-17
dc.date.accessioned2026-07-07T03:02:46Z
dc.date.available2026-07-07T03:02:46Z
dc.descriptionWe report a resonant inelastic x-ray scattering (RIXS) study of charge excitations in the electron-doped high-Tc superconductor Nd1.85Ce0.15CuO4. The intraband and interband excitations across the Fermi energy are separated for the first time by tuning the experimental conditions properly to measure charge excitations at low energy. A dispersion relation with q-dependent width emerges clearly in the intraband excitation, while the intensity of the interband excitation is concentrated around 2 eV near the zone center. The experimental results are consistent with theoretical calculation of the RIXS spectra based on the Hubbard model.
dc.identifierhttps://arxiv.org/abs/cond-mat/0412467
dc.identifierhttp://arxiv.org/abs/cond-mat/0412467
dc.identifierPhys. Rev. Lett. 94, 207003 (2005)
dc.identifierdoi:10.1103/PhysRevLett.94.207003
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/25511
dc.subjectStrongly Correlated Electrons
dc.titleMomentum Dependence of Charge Excitations in the Electron-Doped Superconductor Nd1.85Ce0.15CuO4: a RIXS Study
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