RT info:eu-repo/semantics/article T1 Probing the Coulomb Interaction of the Unconventional Superconductor PuCoGa5 by Phonon Spectroscopy A1 Raymond, S. A1 Piekarz, P. A1 Sanchez, J. P. A1 Krisch, M. A1 Janoušová, B. A1 Rebizant, J. A1 Metoki, N. A1 Kaneko, K. A1 Jochym, P. T. A1 Oleś, A. M. A1 Parlinski, K. A1 Serrano Gutiérrez, Jorge AB The phonon dispersion curves of the superconductor PuCoGa5 were studied by inelastic x-ray scattering at room temperature. The experimental data agree well with ab initio lattice dynamics calculations. An accurate description of the phonon spectrum is obtained only when a local Coulomb repulsion U≈3  eV among 5f electrons is taken into account. PB American Physical Society SN 0031-9007 YR 2006 FD 2006 LK https://uvadoc.uva.es/handle/10324/65325 UL https://uvadoc.uva.es/handle/10324/65325 LA eng NO Phys. Rev. Lett. 96, 237003 (2005) DS UVaDOC RD 24-dic-2024