Title: Understanding the Complex Phase Diagram of Uranium - the Role of the 5f States
Authors: RAYMOND S.BOUCHET J.LANDER G.h.LE TACON M.GABARINO G.HOESCH M.RUEFF J.p.KRISCH M.LASHLEY J. C.SCHULZE R.ALBERS R.c.
Citation: PHYSICAL REVIEW LETTERS vol. 107 no. 13 p. 136401 (1-4)
Publisher: AMER PHYSICAL SOC
Publication Year: 2011
JRC N°: JRC60529
ISSN: 0031-9007
URI: http://prl.aps.org/abstract/PRL/v107/i13/e136401
http://publications.jrc.ec.europa.eu/repository/handle/JRC60529
DOI: 10.1103/PhysRevLett.107.136401
Type: Articles in periodicals and books
Abstract: Predictions of the phonon behaviour at high pressure are included in the recent first-principle calculation of the phonons in uranium. Experiments up to 20 GPa using inelastic x-ray scattering confirm these predictions. Extending the theory explains the complex phase diagram of uranium as a function of temperature and pressure, which includes the interplay between a charge-density wave and superconductivity. Observations extending back 40 years can be interpreted on the basis of correctly including a narrow band of 5f states and the associated strong electron-phonon coupling.
JRC Directorate:Nuclear Safety and Security

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