Synthesis and magnetic properties of rare earth ruthenates, Ln5Ru2O12 (Ln = Pr, Nd, Sm-Tb)

被引：10

作者：

Bharathy, M. ^{[1
]}

Gemmill, W. R. ^{[1
]}

Fox, A. H. ^{[1
]}

Darriet, J. ^{[2
]}

Smith, M. D. ^{[1
]}

Hadermann, J. ^{[3
]}

Remy, M. S. ^{[1
]}

zur Loye, H. -C. ^{[1
]}

机构：

[1] Univ S Carolina, Dept Chem & Biochem, Columbia, SC 29208 USA

[2] CNRS, Inst Chim Mat Condensee Bordeaux, Bordeaux, France

[3] Univ Antwerp, Antwerp, Belgium

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2009年 / 182卷 / 05期

基金：

美国国家科学基金会;

关键词：

Ln(5)M(2)O(12); TEM; Hydroxide fluxes; Twinned crystals; Metal-metal bonding; CRYSTAL-STRUCTURE; GD-LU; OXIDES; TRANSITION; COMPLEX; SERIES;

D O I：

10.1016/j.jssc.2009.02.013

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Single crystals of Ln(5)Ru(2)O(12) (Ln = Pr, Nd, Sm-Tb) 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) angstrom, b = 5.8414(2)-5.9488(3) angstrom, c = 7.3489(2)-7.6424(4) angstrom, beta = 107.425(3)-107.432(2)degrees and Z = 2. The crystal structure is isotypic with the defect/disorder model of Ln(5)Re(2)O(12) (Ln = Y, Gd) and consists of one dimensional edge shared RuO6 octahedral chains separated by a two dimensional LnO(x) polyhedral framework. Magnetic measurements indicate paramagnetic and antiferromagnetic behavior for Ln = Nd, Sm-Gd and Ln = Tb, respectively. (c) 2009 Elsevier Inc. All rights reserved.

引用

页码：1164 / 1170

页数：7

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