Journal
JOURNAL OF SOLID STATE CHEMISTRY
Volume 183, Issue 1, Pages 33-40Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jssc.2009.10.007
Keywords
Magnetic properties; Perovskites; Ruthenium; Lanthanides; Antiferromagnetic transition
Funding
- Ministry of Education, Science, Sports, and Culture of Japan
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Quadruple perovskites Ba(4)LnRu(3)O(12) (Ln=La, Nd, Sm-Gd, Dy-Lu) were prepared and their magnetic properties were investigated. They adopt the 12L-perovskite-type structure consisting of Ru3O12 trimers and LnO(6) octahedra. All of these compounds show an antiferromagnetic transition at 2.5-30 K. For Ba4NdRu3O12, ferrimagnetic ordering has been observed at 11.5 K. The observed magnetic transition is due to the magnetic behavior of the Ru34.33+O12 trimer with S=1/2. Magnetic properties of Ba(4)LnRu(3)O(12) were compared with those of triple perovskites Ba(3)LnRu(2)O(9) and double perovskites Ba(2)LnRuO(6). (C) 2009 Elsevier Inc. All rights reserved.
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