Published September 28, 2011
| Version v1
Journal article
Absence of long-range magnetic ordering in the pyrochlore compound Er2Sn2O7
- 1. Department of Chemistry, University of Winnipeg, Winnipeg, MB, R3B 2E9 (Canada)
- 2. Department of Chemistry, University of Manitoba, Winnipeg, MB, R3T 2N2 (Canada)
- 3. NIST Center for Neutron Research, Gaithersburg, MD 20899-6102 (United States)
- 4. National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32310 (United States)
Description
The low temperature behaviour of powder Er2Sn2O7 samples has been studied by magnetic susceptibility, heat capacity, and neutron scattering experiments. We report here the absence of magnetic ordering down to 100 mK. Anomalies in the heat capacity can be accounted for through an analysis of the crystal field spectrum observed by inelastic neutron scattering spectroscopy. These new measurements on Er2Sn2O7 suggest a new lower bound for the frustration index of f = |ΘCW|/TN = 14/0.1 = 140, placing this compound into a highly frustrated regime. (fast track communication)
Availability note (English)
Available from http://dx.doi.org/10.1088/0953-8984/23/38/382201Additional details
Identifiers
Publishing Information
- Journal Title
- Journal of Physics. Condensed Matter
- Journal Volume
- 23
- Journal Issue
- 38
- Journal Page Range
- [5 p.]
- ISSN
- 0953-8984
- CODEN
- JCOMEL
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 43010001
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- CRYSTAL FIELD; EUROPIUM COMPOUNDS; INELASTIC SCATTERING; MAGNETIC SUSCEPTIBILITY; MAGNETIZATION; NEUTRON DIFFRACTION; OXYGEN COMPOUNDS; POWDERS; PYROCHLORE; SPECIFIC HEAT; SPECTRA; SPECTROSCOPY; TEMPERATURE RANGE 0000-0013 K; TIN COMPOUNDS
- Descriptors DEC
- COHERENT SCATTERING; DIFFRACTION; MAGNETIC PROPERTIES; MINERALS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; SCATTERING; TEMPERATURE RANGE; THERMODYNAMIC PROPERTIES