Автор |
M. A. Chernikov |
Автор |
A. Bianchi |
Автор |
E. Felder |
Автор |
U. Gubler |
Автор |
H. R. Ott |
Дата выпуска |
1996-08-20 |
dc.description |
We report measurements of the thermal conductivity λ(T) and the specific heat C<sub>p</sub>(T) of icosahedral Al<sub>70</sub>Re<sub>8.6</sub>Pd<sub>21.4</sub> at low temperatures. Below 1 K, the behaviour of the quasilattice thermal conductivity λ<sub>ph</sub>(T) is compatible with the scattering of vibrational excitations involving tunnelling states and grain boundaries. The specific heat C<sub>p</sub>(T) contains a small linear contribution γ T. Our λ<sub>ph</sub>(T) results indicate that a substantial part of γ T may be attributed to the excitations of tunnelling states. Below 0.4 K C<sub>p</sub>(T) increases with decreasing T and at the lowest temperatures it varies as T<sup>−2</sup>, suggestive of an interaction of the quadrupolar moments of <sup>185</sup>Re and <sup>187</sup>Re nuclei with the gradient of electric fields induced by their neighbours. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Копирайт |
1996 EDP Sciences |
Название |
Low-temperature thermal properties of icosahedral Al-Re-Pd |
Тип |
lett |
DOI |
10.1209/epl/i1996-00132-1 |
Electronic ISSN |
1286-4854 |
Print ISSN |
0295-5075 |
Журнал |
EPL (Europhysics Letters) |
Том |
35 |
Первая страница |
431 |
Последняя страница |
438 |
Аффилиация |
M. A. Chernikov; Laboratorium für Festkörperphysik, ETH-Hönggerberg - CH-8093 Zürich, Switzerland |
Аффилиация |
A. Bianchi; Laboratorium für Festkörperphysik, ETH-Hönggerberg - CH-8093 Zürich, Switzerland |
Аффилиация |
E. Felder; Laboratorium für Festkörperphysik, ETH-Hönggerberg - CH-8093 Zürich, Switzerland |
Аффилиация |
U. Gubler; Laboratorium für Festkörperphysik, ETH-Hönggerberg - CH-8093 Zürich, Switzerland |
Аффилиация |
H. R. Ott; Laboratorium für Festkörperphysik, ETH-Hönggerberg - CH-8093 Zürich, Switzerland |
Выпуск |
6 |