RT info:eu-repo/semantics/article
T1 Probing the Coulomb interaction of PuCoGa5 by phonon spectroscopy
A1 Raymond, S.
A1 Piekarz, P.
A1 Sanchez, J.P.
A1 Krisch, M.
A1 Detlefs, 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 unconventional 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 theoretical description of the phonon spectrum is obtained only when a local Coulomb repulsion U approx. 3  eV among 5f electrons is taken into account. This implies partial localization of the 5f electrons in this compound. A comparison made with the phonon spectrum of UCoGa5 suggests that the latter compound is better described with a fully itinerant f electrons model.
PB ScienceDirect
SN 0925-8388
YR 2007
FD 2007
LK https://uvadoc.uva.es/handle/10324/65311
UL https://uvadoc.uva.es/handle/10324/65311
LA eng
NO Journal of Alloys and Compounds 444–445 (2007) 104–108
DS UVaDOC
RD 22-nov-2024