You are here

Crystal structure and magnetic properties of GdSi1.78, Gd(Si0.684Ge0.316)(1.78), GdGe1.57, and GdSn2 compounds

TitleCrystal structure and magnetic properties of GdSi1.78, Gd(Si0.684Ge0.316)(1.78), GdGe1.57, and GdSn2 compounds
Publication TypeJournal Article
Year of Publication2015
AuthorsZou, JD, Liu, J, Yan, M
JournalJournal of Magnetism and Magnetic Materials
Volume385
Pagination77-82
Date Published07
Type of ArticleArticle
ISBN Number0304-8853
Accession NumberWOS:000352489100011
Keywordsantiferromagnetism, gd-5(si2ge2), gd-5(sixge1-x)(4), gdsi2, Heat capacity, Magnetic properties, metals, Phase transition, phase-transition, Rare earth intermetallics, rare-earth disilicides, silicide
Abstract

Intermetallic compounds of Gd with Si, Ge, and Sri near 1:2 stoichiometry adopt several closely related crystal structures. We find that GdSi1.78 and Gd(Si0.684Ge0.316)(1.78) crystallize in the same GdSi1.4-type orthorhombic structure (space group forma), while GdGe1.57 and GdSn2 adopt alpha-ThSi2-type tetragonal structure (space group I4(1)/amd) and ZrSi2-type orthorhombic structure (space group Cmcm), respectively. All compounds order antiferromagnetically; their Neel temperatures are only weakly affected by the magnetic field of less than 50 kOe. Unusual features are observed including multiple phase transitions and thermomagnetic irreversibilities. (C) 2015 Elsevier B.V. All rights reserved.

DOI10.1016/j.mmm.2015.02.057
Custom 1

Extraordinary Responsive