Universality in the resistivity-temperature relationship for decagonal quasicrystals
- 1 May 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 49 (18) , 13204-13207
- https://doi.org/10.1103/physrevb.49.13204
Abstract
The temperature T dependence of the resistivity of decagonal single quasicrystals available at present has been carefully examined from 77 to 340 K. All the samples show a precisely linear T dependence of resistivity along the periodic direction, while in the quasicrystalline plane a quadratic term was added to fit the data. The linear T dependence in the large temperature range implies a very low transport Debye temperature, and can be easily understood by the nearly filled band model used to explain Hall-effect anisotropy. The T dependence of the resistivity in the quasicrystalline plane can be satisfactorily explained by the generalized Faber-Ziman theory, proving an enhanced electron-phonon interaction and an enhanced phonon-phonon coupling in the quasicrystalline plane.Keywords
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