Probing the gamma-alpha Transition in Bulk Ce under Pressure: A Direct Investigation by Resonant Inelastic X-ray Scattering
| Autor: | P Rueff, J., P Itié, J., Taguchi, M., Hague, C. F., M Mariot, J., renaud delaunay, P Kappler, J., Jaouen, N. |
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| Přispěvatelé: | Laboratoire de Chimie Physique - Matière et Rayonnement (LCPMR), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Synchrotron SOLEIL (SSOLEIL), Centre National de la Recherche Scientifique (CNRS), Center Soft X-Ray Spectroscopy Instrumentation Team [Hyogo] (RIKEN SPring-8), RIKEN SPring-8 Center [Hyogo] (RIKEN RSC), RIKEN - Institute of Physical and Chemical Research [Japon] (RIKEN)-RIKEN - Institute of Physical and Chemical Research [Japon] (RIKEN), Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), European Synchrotron Radiation Facility (ESRF), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), RIKEN - Institute of Physical and Chemical Research [Japon] (RIKEN), Masson, Beatrice, Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Soft X-ray spectroscopy Laboratory (SXSL) |
| Jazyk: | angličtina |
| Rok vydání: | 2006 |
| Předmět: |
Condensed Matter - Strongly Correlated Electrons
cerium PACS : 78.70.En 71.27.+a 71.20.Eh Strongly Correlated Electrons (cond-mat.str-el) RIXS FOS: Physical sciences Condensed Matter::Strongly Correlated Electrons [PHYS.COND.CM-SCE]Physics [physics]/Condensed Matter [cond-mat]/Strongly Correlated Electrons [cond-mat.str-el] |
| Zdroj: | Physical Review Letters Physical Review Letters, 2006, 96, pp.237403 Physical Review Letters, American Physical Society, 2006, 96, pp.237403 Physical Review Letters, 2006, 96 (23), pp.237403. ⟨10.1103/PhysRevLett.96.237403⟩ Physical Review Letters, American Physical Society, 2006, 96, pp.237403/1-4 HAL |
| ISSN: | 0031-9007 1079-7114 |
| Popis: | We report on the most complete investigation to date of the 4f-electron properties at the gamma-alpha transition in elemental Ce by resonant inelastic x-ray scattering (RIXS). The Ce 2p3d-RIXS spectra were measured directly in the bulk material as a function of pressure through the transition. The spectra were simulated within the Anderson impurity model. The occupation number nf was derived from the calculations in both gamma- and alpha-phases in the ground state along with the f doubleoccupancy. We find that the electronic structure changes result mainly from band formation of 4f electrons which concurs with reduced electron correlation and increased Kondo screening at high pressure. 4 pages |
| Databáze: | OpenAIRE |
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