Title: Specific Heat in NpNiSn and NpIrSn
Authors: JAVORSKY P.COLINEAU EricJARDIN R.PRCHAL J.WASTIN FranckREBIZANT J.
Citation: JOURNAL OF ALLOYS AND COMPOUNDS vol. 471 no. 1-2 p. 1-4
Publisher: ELSEVIER SCIENCE SA
Publication Year: 2009
JRC Publication N°: JRC52467
ISSN: 0925-8388
URI: http://www.elsevier.com/locate/jallcom
http://publications.jrc.ec.europa.eu/repository/handle/JRC52467
DOI: 10.1016/j.jallcom.2008.03.052
Type: Articles in Journals
Abstract: We present the specific-heat study of the electronic properties of NpIrSn and NpNiSn, crystallizing in the ZrNiAl-type hexagonal and TiNiSi-type orthorhombic structure, respectively. NpIrSn orders antiferromagnetically below TN = 38K and undergoes a further magnetic phase transition at T1 = 23.5K. The -coefficient of the electronic specific heat is only moderately enhanced to 75mJ mol-1 K-2. ThIrSn, crystallizing in the same structure, is used to estimate the lattice specific heat to analyze the magnetic part. NpNiSn orders antiferromagnetically below TN = 35.5K. In both compounds the antiferromagnetic order is not affected by magnetic fields up to 14 T.
JRC Institute:Institute for Transuranium Elements

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