Published December 13, 2006
| Version v1
Journal article
Low-temperature thermal properties of n-type partially filled calcium skutterudites
- 1. Laboratoire de Physique des Materiaux, UMR 7556, Ecole Nationale Superieure des Mines de Nancy, Parc de Saurupt, F-54042 Nancy (France)
- 2. Institute of Physics, Academy of Sciences of the Czech Republic, Cukrovarnicka 10, CZ-162 53 Prague 6 (Czech Republic)
Description
The low-temperature thermal properties of polycrystalline CaxCo4Sb12 skutterudite samples have been investigated between 10 and 300 K for different x contents. The compounds were synthesized via solid-state reactions. The lattice thermal conductivity is found to decrease drastically with the increasing content of Ca at any temperature considered. Our theoretical analysis puts forward that this reduction can be explained by phonon-point defect scattering due to both mass fluctuations and strain field scattering on the 2a crystallographic position and also to phonon resonance scattering
Availability note (English)
Available online at http://stacks.iop.org/0953-8984/18/11301/cm6_49_021.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/0953-8984/18/11301/cm6_49_021.pdf; http://www.iop.org/;
- DOI
- 10.1088/0953-8984/18/49/021;
- PII
- S0953-8984(06)28256-0;
Publishing Information
- Journal Title
- Journal of Physics. Condensed Matter
- Journal Volume
- 18
- Journal Issue
- 49
- Journal Page Range
- p. 11301-11308
- ISSN
- 0953-8984
- CODEN
- JCOMEL
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38014295
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ANTIMONIDES; CALCIUM COMPOUNDS; COBALT COMPOUNDS; FLUCTUATIONS; PHONONS; POINT DEFECTS; POLYCRYSTALS; RESCATTERING; RESONANCE SCATTERING; SOLIDS; STRAINS; TEMPERATURE DEPENDENCE; THERMAL CONDUCTIVITY
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; ANTIMONY COMPOUNDS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; CRYSTALS; INELASTIC SCATTERING; PHYSICAL PROPERTIES; PNICTIDES; QUASI PARTICLES; SCATTERING; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; VARIATIONS