Low-temperature lattice excitation of icosahedral Al-Mn-Pd quasicrystals

被引：18

作者：

Li, CL ^{[1
]}

Liu, YY

机构：

[1] S China Univ Technol, Dept Phys, Guangzhou 510640, Peoples R China

[2] CCAST, World Lab, Beijing 100080, Peoples R China

来源：

PHYSICAL REVIEW B | 2001年 / 63卷 / 06期

关键词：

D O I：

10.1103/PhysRevB.63.064203

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We suggest a theoretical method for dealing with the contribution of phasons to the lattice vibration of quasicrystals. Based on this, we derive the density of vibrational states (DOVS) and specific-heat expressions of the icosahedral Al-Mn-Pd quasicrystal, and obtain corresponding numerical solutions which are in agreement with the experimental data measured by Walti ct nl. [Phys. Rev. B 57, 10 504 (1998)]. This consistency shows that the: contribution of the phasons to either the DOVS or specific heat cannot be neglected at low temperature. Our theory would be also helpful to study further the thermal conductivity of the icosahedral quasicrystal.

引用

页数：8

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