ScienceAsia 27 (2001) : 067-071 |doi: 10.2306/scienceasia1513-1874.2001.27.067

On the Specific Heat of the Cubic Quasicrystals

Cuilian Li^a, Youyan Liu^b and Wichit Sritrakool^c

ABSTRACT: Based on the linear elasticity theory of the cubic quasicrystals, we have derived the equations of wave propagating in the cubic quasicrystals and the analytical expression of the phase velocity of wave propagation. Moreover, we extend the Debye hypothesis of continuous elastic medium to study the specific heat of the cubic quasicrystals, for which we obtain an analytic expression of the specific heat as well as an approach to calculate the Debye temperature _D.

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a Department of Physics, South China University of Technology, Guangzhou 510640, China.
b Department of Physics, South China University of Technology, Guangzhou 510640, China and International Center for Material Physics, Academia Sinica, Shenyang 110015, China.
c Department of Physics, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.

Received 9 Mar 2000, Accepted 11 Aug 2000