Published April 25, 2007
| Version v1
Journal article
Phonon scattering in quasicrystalline i-Al72Pd19.5Mn8.5: A study of the low-temperature thermal conductivity
- 1. Faculty of Natural Sciences, University of Split, N. Tesle 12, HR-21000 Split (Croatia) and Institute of Physics, P.O. Box 304, HR-10001 Zagreb (Croatia)
- 2. Institute of Physics, P.O. Box 304, HR-10001 Zagreb (Croatia)
- 3. Jozef Stefan Institute, Jamova 39, SI-1000 Ljubljana (Slovenia)
- 4. Laboratorium fuer Festkoerperphysik, ETH Hoenggerberg, CH-8093 Zurich (Switzerland)
Description
We measured the thermal conductivity of an icosahedral quasicrystal i-Al72Pd19.5Mn8.5 in the temperature range between 0.4 K and 300 K. The analysis of the low-temperature results was based on a Debye-type model. The results of the analysis for the two temperature regions of 0.4 K < T < 40 K and 0.4 K < T < 1 K, are not consistent in the sense that a tunnelling-states contribution to phonon scattering is verified only for 0.4 K < T < 1 K. The same fitting procedure indicates that structural defects of the stacking-fault type are an important source of phonon scattering. Their physical presence was clearly identified by a transmission electron microscopy experiment
Additional details
Identifiers
- DOI
- 10.1016/j.jallcom.2006.05.097;
- arXiv
- arXiv:cond-mat/0307458v2;
- PII
- S0925-8388(06)00662-1;
Publishing Information
- Journal Title
- Journal of Alloys and Compounds
- Journal Volume
- 432
- Journal Issue
- 1-2
- Journal Page Range
- p. 1-6
- ISSN
- 0925-8388
- CODEN
- JALCEU
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39013321
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ALUMINIUM ALLOYS; MANGANESE ALLOYS; PALLADIUM ALLOYS; PHONONS; SCATTERING; STACKING FAULTS; TEMPERATURE RANGE 0000-0013 K; TEMPERATURE RANGE 0013-0065 K; TEMPERATURE RANGE 0065-0273 K; TEMPERATURE RANGE 0273-0400 K; THERMAL CONDUCTION; THERMAL CONDUCTIVITY; TRANSMISSION ELECTRON MICROSCOPY; TUNNEL EFFECT
- Descriptors DEC
- ALLOYS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; ELECTRON MICROSCOPY; ENERGY TRANSFER; HEAT TRANSFER; MICROSCOPY; PHYSICAL PROPERTIES; PLATINUM METAL ALLOYS; QUASI PARTICLES; TEMPERATURE RANGE; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT ALLOYS
Optional Information
- Copyright
- Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.