40èmes Journées des Actinides & 2nd Workshop on Actinide Targets

Session

Theory and Spectroscopy II

30 Mar 2010, 10:45

503/1-001 - Council Chamber (CERN)

15. Electronic structure theory of Pu-based alloys and compounds: Pu-Am, Pu-Ce-alloys and PuCoGa5

Dr Alexander Shick (Institute of Physics ASCR, Prague)

30/03/2010, 11:05

Theory, electronic structure

oral

In the present work, we study the electron correlation effects in the electronic structure and spectra of Pu-Am, Pu-Ce alloys and PuCoGa5. We make use of the “local density matrix” approximation (LDMA) to DMFT, that combines the Hubbard-I approximation with the full-potential linearized augmented plane wave (FP-LAPW) method , including self-consistency over the charge density. Calculated PE...

54. Electronic structure and magnetic properties of UNi1/2Sb2 compound

m. werwinski

30/03/2010, 11:25

Theory, electronic structure

oral

Electronic structure and magnetic properties of UNi1/2Sb2 compound Blank line (12 points) M. Werwiński, A. Szajek Blank line (12 points) Institute of Molecular Physics. Polish Academy of Sciences. ul. M. Smoluchowskiego 17. 60-179 Poznań. Poland, e-mail: werwinski@ifmpan.poznan.pl Blank line (12 points) The UNi1/2/2Sb2 compound crystallizes in the tetragonal HfCuSi2 type structure...

17. Bulk properties of the ζ-U-Pu phase

Ladislav Havela (Charles University Prague)

30/03/2010, 11:45

Strongly correlated behaviours, superconductivity, quantum criticality

oral

In the U-Pu phase diagram a mysterious ζ-U-Pu phase exists over a large composition range (35-70 % U). This cubic (rhombohedrally distorted) phase has 10 different crystallographic positions, randomly occupied by U and Pu. When compared with other Pu allotropic phases, its volume density of 18.55 g/cm3 fits about half way between a-(19.92 g/cm3 ) and b-Pu (17.70 g/cm3).This value is much...

27. The Schrieffer-Wolff transformation for the S=1 Underscreened Kondo Lattice model : Application to Uranium compounds

Dr Bernard COQBLIN (CNRS-Univ. Paris-Sud, 91405-Orsay, France)

30/03/2010, 11:45

Theory, electronic structure

oral

The Schrieffer-Wolff transformation for the S=1 Underscreened Kondo Lattice model : Application to Uranium compounds Christopher Thomas1, Acirete S. da Rosa Simoes1, J. R. Iglesias1, C. Lacroix2, N. B. Perkins3, B. Coqblin4 1 Instituto de Fisica, Universidade Federal do Rio Grande do Sul, 91501-970 Porto Alegre, Brazil. 2 Institut Néel, CNRS-UJF, 38042 Grenoble Cedex 9,...