Investigation of ferromagnetic filled skutterudite compounds EuT4Sb12 (T = Fe, Ru, Os)
Creators
- 1. Department of Physics and Institute for Pure and Applied Physical Sciences, University of California, San Diego, La Jolla, CA 92093 (United States)
- 2. Department of Physics, University of California, Santa Cruz, Santa Cruz, CA 92064 (United States)
- 3. Institut fuer Mineralogie and Kristallographie, Universitat Wien, Althanstrasse 14, A-1090 Vienna (Austria)
- 4. Institut fuer Physikalische Chemie, Universitat Wien, Althanstrasse 14, A-1090 Vienna (Austria)
Description
The physical properties of single crystals of filled skutterudite compounds EuT4Sb12 (T = Fe, Ru, Os) have been investigated by means of x-ray diffraction, electrical resistivity, specific heat, magnetization, and x-ray absorption spectroscopy measurements. The Eu-based materials crystallize in the LaFe4P12-type structure (space group Im3-bar). A small Eu deficiency is encountered for Eu0.95Fe4Sb12, while the homologous compounds, Eu1.0Ru4Sb12 and Eu1.0Os4Sb12, reveal full occupancy of the Eu site. Eu0.95Fe4Sb12 appears to exhibit either canted ferromagnetic or ferrimagnetic order at TC = 88 K whereas EuRu4Sb12 and EuOs4Sb12 are ferromagnets with Curie temperatures of TC = 4 and 9 K, respectively. X-ray absorption near edge spectroscopy measurements reveal a nearly divalent Eu electronic configuration for EuT4Sb12 (T = Fe, Ru, Os) with no significant change with T atom or temperature
Availability note (English)
Available online at http://stacks.iop.org/0953-8984/16/5095/cm4_28_027.pdf or at the Web site for the Journal of Physics. Condensed Matter (ISSN 1361-648X) http://www.iop.org/Additional details
Identifiers
- URL
- http://stacks.iop.org/0953-8984/16/5095/cm4_28_027.pdf; http://www.iop.org/;
- DOI
- 10.1088/0953-8984/16/28/027;
- PII
- S0953-8984(04)76733-8;
Publishing Information
- Journal Title
- Journal of Physics. Condensed Matter
- Journal Volume
- 16
- Journal Issue
- 28
- Journal Page Range
- p. 5095-5107
- ISSN
- 0953-8984
- CODEN
- JCOMEL
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36004485
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
- Descriptors DEI
- ABSORPTION SPECTROSCOPY; ANTIMONY; CURIE POINT; ELECTRIC CONDUCTIVITY; EUROPIUM; FERROMAGNETIC MATERIALS; INTERMETALLIC COMPOUNDS; IRON; MAGNETIZATION; MONOCRYSTALS; OSMIUM; RUTHENIUM; SPACE GROUPS; SPECIFIC HEAT; X-RAY DIFFRACTION; X-RAY SPECTROSCOPY
- Descriptors DEC
- ALLOYS; COHERENT SCATTERING; CRYSTALS; DIFFRACTION; ELECTRICAL PROPERTIES; ELEMENTS; MAGNETIC MATERIALS; MATERIALS; METALS; PHYSICAL PROPERTIES; PLATINUM METALS; RARE EARTHS; REFRACTORY METALS; SCATTERING; SPECTROSCOPY; SYMMETRY GROUPS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENTS; TRANSITION TEMPERATURE