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.
KLIMCZUK Tomasz;
SHICK Alexander B.;
KOZUB A. L.;
GRIVEAU Jean-Christophe;
COLINEAU Eric;
FALMBIGL Matthias;
WASTIN Franck;
ROGL P.;
2015-03-16
AMER INST PHYSICS
JRC93827
2166-532X,
http://scitation.aip.org/content/aip/journal/aplmater/3/4/10.1063/1.4913564,
https://publications.jrc.ec.europa.eu/repository/handle/JRC93827,
10.1063/1.4913564,
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