Magnetic properties of ferromagnetic Pu2Pt3Si5

JOURNAL OF ALLOYS AND COMPOUNDS

卷:576

Article

Griveau, J. -C.¹  Colineau, E.¹  Bouexiere, D.¹  Gofryk, K.^1,2  Klimczuk, T.^1,3  Rebizant, J.¹ 

[1] Commiss European Communities, Joint Res Ctr, Inst Transuranium Elements, D-76125 Karlsruhe, Germany

[2] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[3] Gdansk Univ Technol, Fac Appl Phys & Math, PL-80233 Gdansk, Poland

关键词: Actinide alloys and compounds;    Magnetically ordered materials;    Heat capacity;    Phase diagrams;    Phase transitions;   

DOI  :  10.1016/j.jallcom.2013.05.168

来源: Elsevier

【 摘 要 】

The structural, magnetic, and thermodynamic properties of a new plutonium based compound, Pu2Pt3Si5, are reported. Single crystals produced by a Sn-flux technique have been analyzed showing a ferromagnetic behavior at 58 K. Pu2Pt3Si5 crystallizes in the U2Co3Si5-type orthorhombic Iabm structure (s.g. 72) with atomic parameters a = 9.9226(2) angstrom, b = 11.4436(2) angstrom and c = 6.0148(1) angstrom. The effective (mu(eff) similar to 0.74 mu(B)/Pu) and saturated (sigma(sat) similar to 0.34 mu(B)/Pu) moments as well as the Sommerfeld coefficient (gamma(e) similar to 2 mJ mol(-1) K-2/Pu) could point towards 5f localization in this material. (C) 2013 Elsevier B.V. All rights reserved.

【 授权许可】

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