Title: X-ray and 237Np Mössbauer effect investigation on the NpB2C compound
Authors: GACZYNSKI PiotrROGL P.COLINEAU EricELOIRDI RachelWASTIN FranckBOULET P.REBIZANT J.
Citation: JOURNAL OF PHYSICS-CONFERENCE SERIES vol. 217 no. 012140 p. 1-4
Publisher: IOP PUBLISHING LTD
Publication Year: 2010
JRC N°: JRC54183
ISSN: 1742-6588
URI: http://iopscience.iop.org/1742-6596/217/1/012140
http://publications.jrc.ec.europa.eu/repository/handle/JRC54183
DOI: 10.1088/1742-6596/217/1/012140
Type: Contributions to Conferences
Abstract: Powder x-ray diffraction and 237Np Mössbauer effect were performed on NpB2C crystallizing in the ThB2C - type structure, R3m. On the base on 237Np Mössbauer spectroscopy formal +3 oxidation states were assigned to both Np sites, 3a and 6c. The magnetic ordering of the Np sublattice below 80K is confirmed and the value of the ordered moment amounts to 0.30 ¿B and 1.05 ¿B on the 3a and 6c Np sites, respectively. The reduced magnitudes of the ordered moment and of the isomer shift suggest rather delocalized 5f electrons.
JRC Institute:Institute for Transuranium Elements

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