Magnetic properties of GdxY1-xFe2Zn20: Dilute, large-S moments in a nearly ferromagnetic Fermi liquid

TitleMagnetic properties of GdxY1-xFe2Zn20: Dilute, large-S moments in a nearly ferromagnetic Fermi liquid
Publication TypeJournal Article
Year of Publication2007
AuthorsJia S, Ni N, Bud'ko SL, Canfield PC
Journal TitlePhysical Review B
Volume76
Pages184410
Date PublishedNov
Type of ArticleArticle
ISBN Number1098-0121
Accession NumberISI:000251326700054
Keywordsalloys, behavior, co, cobalt, critical-points, EXCHANGE, metal, palladium, RH, transport-properties
Abstract

Single crystals of the dilute, rare earth bearing, pseudoternary series GdxY1-xFe2Zn20 were grown out of Zn-rich solution. Measurements of magnetization, resistivity, and heat capacity on GdxY1-xFe2Zn20 samples reveal ferromagnetic order of the Gd3+ local moments across virtually the whole series (x >= 0.02). The magnetic properties of this series, including the ferromagnetic ordering, the reduced saturated moments at base temperature, the deviation of the susceptibilities from Curie-Weiss law, and the anomalies in the resistivity, are understood within the framework of dilute, S moments (Gd3+) embedded in a nearly ferromagnetic Fermi liquid (YFe2Zn20). The s-d model is employed to further explain the variation of T-C with x as well as the temperature dependences of the susceptibilities.

DOI10.1103/PhysRevB.76.184410
Alternate JournalPhys. Rev. B