Title
Synthesis and magnetic properties of rare earth ruthenates, <tex>$Ln_{5}Ru_{2}O_{12}$</tex> (Ln=Pr, Nd, SmTb) Synthesis and magnetic properties of rare earth ruthenates, <tex>$Ln_{5}Ru_{2}O_{12}$</tex> (Ln=Pr, Nd, SmTb)
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
London ,
Subject
Physics
Source (journal)
Journal of solid state chemistry. - London
Volume/pages
182(2009) :5 , p. 1164-1170
ISSN
0022-4596
ISI
000265893700027
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Single crystals of Ln5Ru2O12 (Ln=Pr, Nd, SmTb) were grown out of either NaOH or KOH fluxes in sealed silver tubes. The crystals of all the phases were observed to be twinned as confirmed by TEM studies. The series crystallize in the C2/m monoclinic system with lattice parameters, a=12.4049(4)12.7621(6) Å, b=5.8414(2)5.9488(3) Å, c=7.3489(2)7.6424(4) Å, β=107.425(3)107.432(2)° and Z=2. The crystal structure is isotypic with the defect/disorder model of Ln5Re2O12 (Ln = Y, Gd) and consists of one dimensional edge shared RuO6 octahedral chains separated by a two dimensional LnOx polyhedral framework. Magnetic measurements indicate paramagnetic and antiferromagnetic behavior for Ln=Nd, SmGd and Ln=Tb, respectively.
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