Magnetic ordering of divalent europium in double perovskites Eu2LnTaO6 (Ln=rare earths)
- 1. Division of Chemistry, Hokkaido University, Sapporo 060-0810 (Japan)
Description
Structures and magnetic properties of double perovskite-type oxides Eu2LnTaO6 (Ln=Eu, Dy-Lu) were investigated. These compounds adopt a distorted double perovskite structure with space group P21/n. Magnetic susceptibility, specific heat, and 151Eu Moessbauer spectrum measurements show that the Eu2+ ions at the 12-coordinate sites of the perovskite structure are antiferromagnetically ordered at ∼4 K, and that Ln3+ ions at the 6-coordinate site are in the paramagnetic state down to 1.8 K. - Graphical abstract: Magnetic properties of double perovskite-type oxides Eu2LnTaO6 (Ln=Eu, Dy-Lu) were investigated. Magnetic susceptibility, specific heat, and 151Eu Moessbauer spectrum measurements show that the Eu2+ ions at the 12-coordinate sites of the perovskite structure are antiferromagnetically ordered at ∼4 K. Highlights: → Crystal structures of double perovskites Eu2LnTaO6 (Ln=rare earth) were determined. → We found that these compounds show an antiferromagnetic ordering at ∼4 K. → The magnetic ordering is due to the interactions of Eu2+ ions. → It was elucidated by specific heat and 151Eu Moessbauer spectrum measurements.
Availability note (English)
Available from http://dx.doi.org/10.1016/j.jssc.2011.04.017Additional details
Identifiers
- DOI
- 10.1016/j.jssc.2011.04.017;
- PII
- S0022-4596(11)00185-X;
Publishing Information
- Journal Title
- Journal of Solid State Chemistry
- Journal Volume
- 184
- Journal Issue
- 6
- Journal Page Range
- p. 1478-1483
- ISSN
- 0022-4596
- CODEN
- JSSCBI
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 43058112
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ANTIFERROMAGNETISM; COORDINATES; EUROPIUM; EUROPIUM 151; EUROPIUM IONS; INTERACTIONS; MAGNETIC SUSCEPTIBILITY; MAGNETIZATION; MOESSBAUER EFFECT; MONOCLINIC LATTICES; OXIDES; PARAMAGNETISM; PEROVSKITE; SPACE GROUPS; SPECIFIC HEAT
- Descriptors DEC
- CHALCOGENIDES; CHARGED PARTICLES; CRYSTAL LATTICES; CRYSTAL STRUCTURE; ELEMENTS; EUROPIUM ISOTOPES; INTERMEDIATE MASS NUCLEI; IONS; ISOTOPES; MAGNETIC PROPERTIES; MAGNETISM; METALS; MINERALS; NUCLEI; ODD-EVEN NUCLEI; OXIDE MINERALS; OXYGEN COMPOUNDS; PEROVSKITES; PHYSICAL PROPERTIES; RARE EARTH NUCLEI; RARE EARTHS; STABLE ISOTOPES; SYMMETRY GROUPS; THERMODYNAMIC PROPERTIES
Optional Information
- Copyright
- Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.