Anisotropic magnetization, resistivity and heat capacity of single crystalline R3Ni2-xSn7 (R=La, Ce, Pr and Nd)

TitleAnisotropic magnetization, resistivity and heat capacity of single crystalline R3Ni2-xSn7 (R=La, Ce, Pr and Nd)
Publication TypeJournal Article
Year of Publication2013
AuthorsLin X, Bud'ko SL, Thimmaiah S, Canfield PC
Journal TitleJournal of Magnetism and Magnetic Materials
Volume331
Pages53-61
Date Published04
Type of ArticleArticle
ISBN Number0304-8853
Accession NumberWOS:000313684400010
Keywordsce3ni2sn7, LA-ND, lu, magnetization, metamagnetic transition, Rare-earth compound, resistivity, series, single crystal, SM, sn, specific heat, stannides
Abstract

We present a detailed study of R3Ni2-xSn7 (R=La, Ce, Pr and Nd) single crystals by measurements of crystal structure, stoichiometry, temperature dependent magnetic susceptibility, magnetization, electrical resistivity, magnetoresistance, and specific heat. This series forms with partial Ni occupancy with x varying from similar to 0.1 for R=La to similar to 0.7 for R=Nd. The electrical resistivity of this series follows metallic behavior at high temperatures. Determination of clear anisotropies as well as antiferromagnetic ordering temperatures for R3Ni2-xSn7 (R=Ce, Pr and Nd) have been made. For P3Ni1.56Sn7 and Nd3Ni1.34Sn7, multiple magnetic transitions take place upon cooling. Metamagnetic transitions in this family (R=Ce, Pr and Nd) were detected for applied magnetic fields below 70 kOe. An H-T phase diagram of Ce3Ni1.69Sn7 was assembled to shed light on its low field properties and to rule out possible quantum critical effects. (C) 2012 Elsevier B.V. All rights reserved.

URL<Go to ISI>://WOS:000313684400010
DOI10.1016/j.jmmm.2012.11.011