| Issue |
Europhys. Lett.
Volume 35, Number 6, August III 1996
|
|
|---|---|---|
| Page(s) | 431 - 438 | |
| Section | Condensed matter: structure, thermal and mechanical properties | |
| DOI | https://doi.org/10.1209/epl/i1996-00132-1 | |
| Published online | 01 September 2002 | |
Low-temperature thermal properties of icosahedral Al-Re-Pd
Laboratorium
für Festkörperphysik, ETH-Hönggerberg - CH-8093 Zürich, Switzerland
Received:
9
February
1996
Accepted:
3
July
1996
We report measurements of the thermal conductivity 
and
the specific heat 
of icosahedral
at low temperatures. Below 1 K, the
behaviour of the quasilattice thermal conductivity 
is compatible with the scattering of vibrational excitations involving
tunnelling states and grain boundaries. The specific heat
contains a small linear contribution γ
T. Our
results indicate that a substantial part of
γ
T may be attributed to the excitations of tunnelling states.
Below 0.4 K increases with decreasing T and at the
lowest temperatures it varies as T-2, suggestive of an interaction
of the quadrupolar moments of 
and 
nuclei with
the gradient of electric fields induced by their neighbours.
PACS: 61.44.Br – Quasicrystals / 65.40.+g – Heat capacities of solids / 66.70.+f – Nonelectronic thermal conduction and heat-pulse propagation in nonmetallic solids
© EDP Sciences, 1996
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.