Title: Ferro- and antiferro-magnetism in (Np, Pu)BC
Authors: KLIMCZUK TOMASZSHICK Alexander B.KOZUB A. L.GRIVEAU Jean-ChristopheCOLINEAU EricFALMBIGL MatthiasWASTIN FranckROGL P.
Citation: APL MATERIALS vol. 3 no. 4 p. 041803
Publisher: AMER INST PHYSICS
Publication Year: 2015
JRC N°: JRC93827
ISSN: 2166-532X
URI: http://scitation.aip.org/content/aip/journal/aplmater/3/4/10.1063/1.4913564
http://publications.jrc.ec.europa.eu/repository/handle/JRC93827
DOI: 10.1063/1.4913564
Type: Articles in periodicals and books
Abstract: Two new transuranium metal boron carbides, NpBC and PuBC, have been synthesized. Rietveld refinements of powder XRD patterns of {Np,Pu}BC confirmed in both cases isotypism with the structure type of UBC. Temperature dependent magnetic susceptibility data reveal antiferromagnetic ordering for PuBC below TN = 44 K, whereas ferromagnetic ordering was found for NpBC below TC = 61 K. Heat capacity measurements prove the bulk character of the observed magnetic transition for both compounds. The total energy electronic band structure calculations support formation of the ferromagnetic ground state for NpBC and the antiferromagnetic ground state for PuBC.
JRC Directorate:Nuclear Safety and Security

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