Phason-Strain Influence on Low-Temperature Specific Heat of
the Decagonal Al-Ni-Co Quasicrystal
LI Cui-Lian, LIU You-Yan
Department of Physics, South China University of Technology,
Guangzhou 510640
Phason-Strain Influence on Low-Temperature Specific Heat of
the Decagonal Al-Ni-Co Quasicrystal
LI Cui-Lian;LIU You-Yan
Department of Physics, South China University of Technology,
Guangzhou 510640
关键词 ：
61.44.Br ,
05.70.Ce ,
62.20.Dc
Abstract ： According to the quasicrystal continuum model and linear elasticity theory, based on the equivalence assumption of phonons and phasons in quasicrystals we have deduced five phase-velocities of elastic wave propagating in the decagonal quasicrystals. By inserting these velocities into the specific heat expression, we have successed in explaining the experiment of specific heat performed on the single-grained decagonal Al-Ni-Co quasicrystals at low temperature. Our results show that the contribution of the phason-strain to the specific heat cannot be neglected at low-temperature. Moveover, the phason-strain may be a main reason that the decagonal quasicrystals possess anisotropic thermal conductivity.
Key words ：
61.44.Br
05.70.Ce
62.20.Dc
出版日期: 2001-04-01
引用本文:
LI Cui-Lian;LIU You-Yan. Phason-Strain Influence on Low-Temperature Specific Heat of
the Decagonal Al-Ni-Co Quasicrystal[J]. 中国物理快报, 2001, 18(4): 570-573.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2001/V18/I4/570
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