Magnetic and related properties of a novel compound Ce3Co2Sn7

JOURNAL OF ALLOYS AND COMPOUNDS

卷:706

Article

Chajewski, G.¹  Pasturel, M.²  Pikul, A. P.¹ 

[1] Polish Acad Sci, Inst Low Temp & Struct Res, Wroclaw, Poland

[2] Univ Rennes 1, Inst Sci Chim Rennes, Chim Solide & Mat, UMR CNRS 6226, F-35014 Rennes, France

关键词: Cerium intermetallics;    Antiferromagnetic order;    Kondo effect;   

DOI  :  10.1016/j.jallcom.2017.02.053

来源: Elsevier

【 摘 要 】

A novel compound Ce7Co3Sn2 was synthesized and characterized by means of X-ray powder diffraction, magnetic susceptibility and magnetization, specific heat, electrical resistivity and magnetoresistivity measurements performed at temperatures down to 1.8 K and in magnetic fields up to 9 T. The compound was found to crystallize in the orthorhombic La3Co2Sn7 structure type ( space group Cmmm, no. 65) with lattice parameters: a - 4.556(8) angstrom, b - 27.345(5) angstrom and c - 4.562(3) angstrom. Analysis of the physical properties suggests that only two of three atoms in the formula unit possess localized magnetic moments, which order antiferromagnetically at 4.6 K with some field-induced spin-reorientation in the ordered region. Moreover, Ce3Co2Sn7 exhibits some features of dense Kondo systems with the characteristic Kondo temperature of about 1.2 K. (C) 2017 Elsevier B.V. All rights reserved.

【 授权许可】

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