Published January 1998
| Version v1
Journal article
Magnetic properties and long-range magnetic order of Er3+ in Er2Ba4Cu7O14.92
- 1. Eidgenoessische Technische Hochschule, Zurich (Switzerland). Lab. fuer Neutronenstreuung
- 2. National Research Inst. for Metals, Ibaraki (Japan)
- 3. Dept. of Physics, Faculty of Science, Tokyo Metropolitan Univ. (Japan)
- 4. ISIS Facility, Rutherford Appleton Lab., Didcot (United Kingdom)
Description
The magnetic ordering of the Er ions in the high-temperature superconductor Er2Ba4Cu7O14.92 (Tc = 89 K) has been studied by low temperature heat capacity measurements and by neutron diffraction. A sharp peak in the specific heat at TN' = 0.54 K can be described by an anisotropic two-dimensional (2D) Ising model. By neutron diffraction we observed a quasi three-dimensional (3D) antiferromagnetic order of the Er ions. The magnetic Er moments are oriented parallel to the b-axis. This work proves that Er-247 is the first compound in the 247 system showing a long-range magnetic ordering. (orig.)
Additional details
Publishing Information
- Journal Title
- Journal of Magnetism and Magnetic Materials
- Journal Volume
- 177-181
- Journal Issue
- pt.1
- Journal Page Range
- p. 517-518
- ISSN
- 0304-8853
- CODEN
- JMMMDC
Conference
- Title
- International conference on magnetism (ICM) and symposium on strongly correlated electron systems
- Dates
- 27 Jul - 1 Aug 1997
- Place
- Cairns (Australia)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 29052242
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ANTIFERROMAGNETIC MATERIALS; BARIUM OXIDES; COPPER OXIDES; ERBIUM OXIDES; HIGH-TC SUPERCONDUCTORS; ISING MODEL; MAGNETIC MOMENTS; NEEL TEMPERATURE; NEUTRON DIFFRACTION; SPECIFIC HEAT
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; COHERENT SCATTERING; COPPER COMPOUNDS; CRYSTAL MODELS; DIFFRACTION; ERBIUM COMPOUNDS; MAGNETIC MATERIALS; MATERIALS; MATHEMATICAL MODELS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; SCATTERING; SUPERCONDUCTORS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TRANSITION TEMPERATURE
Optional Information
- Notes
- 10 refs.