Effects of mixed rare earth occupancy on the low temperature properties of (R, R ', R ''...)Ni2Ge2 single crystals

TitleEffects of mixed rare earth occupancy on the low temperature properties of (R, R ', R ''...)Ni2Ge2 single crystals
Publication TypeJournal Article
Year of Publication2007
AuthorsLaw SA, Bud'ko SL, Canfield PC
Journal TitleJournal of Magnetism and Magnetic Materials
Volume312
Pages140-146
Date PublishedMay
Type of ArticleArticle
ISBN Number0304-8853
Accession NumberISI:000245793800023
Keywordsde Gennes scaling, diffraction, field, GDNI2GE2, magnetic order, metamagnetism, RESONANT MAGNETIC SCATTERING, RNI2GE2
Abstract

Temperature and applied magnetic field dependent magnetization measurements on 34 single crystalline samples of (R, R', R ''...)Ni2Ge2 compounds (R, R', R '', etc. being primarily Gd-Lu, Y), were made. These measurements reveal that, despite extremes in local moment anisotropy, the average de Gennes parameter is a remarkably good predictor of the paramagnetic to antiferromagnetic ordering temperature. In addition, the pronounced metamagnetic phase transitions seen in the low temperature phase of TbNi2Ge2 are found to be remarkably robust to high substitution levels of Gd and 25% substitutions of other heavy rare earths. (C) 2006 Elsevier B.V. All rights reserved.

DOI10.1016/j.jmmm.2006.09.028
Alternate JournalJ. Magn. Magn. Mater.