Quaternary Gd4Ni2Sb1 +/- xSi2 +/- x and Gd4Ni2Bi1 +/- xSi2 +/- x: Crystal structure, homogeneity regions and magnetic behavior

TitleQuaternary Gd4Ni2Sb1 +/- xSi2 +/- x and Gd4Ni2Bi1 +/- xSi2 +/- x: Crystal structure, homogeneity regions and magnetic behavior
Publication TypeJournal Article
Year of Publication2009
AuthorsSvitlyk V, Fei F, Kracher A, Mozharivskyj Y
Journal TitleSolid State Sciences
Volume11
Pages1083-1087
Date Published06/01
ISBN Number1293-2558
Accession NumberISI:000267498700005
Keywordsgd-5(si2ge2), magnetic property, quaternary phase, skutterudites, solid solution, structure, system, transition
Abstract

A new quaternary Gd4Ni2Sb1.07(1)Si1.93(1) phase was synthesized by arc-melting and its structure was determined through single crystal X-ray diffraction techniques. It crystallizes in an orthorhombic unit cell (the Prima space group) with a = 11.1735(9), b = 4.2054(2) and c = 16.711 (1) angstrom and represents a new structure type. The isostructural Gd4Ni2BiSi2 phase was obtained and characterized using the powder Xray diffraction techniques: Prima space group, a = 11.2715(2), b = 4.2046(1) and c = 16.7421(3) angstrom. By the means of electron microprobe analysis, Sb/Si and Bi/Si solid solutions were proven to exist for corresponding phases, and their general formulas can be given as Gd4Ni2Sb1 +/- xSi2 +/- x and Gd4Ni2Bi1 +/- xSi2 +/- x and Gd4Ni2Sb1.07Si1.93 and Gd4Ni2BiSi2 order ferromagnetically at 93 K and 46 K, respectively. (C) 2009 Elsevier Masson SAS. All rights reserved.

URL<Go to ISI>://000267498700005
DOI10.1016/J.Solidstatesciences.2009.02.030