摘要
分别给出周期和自由边界条件下求解一维Fibonacci准周期Frustrated Ising模型的配分函数的方法。研究它的低温热力学性质,发现当温度趋于零时,其热力学函数在参数b/J=2/2m+1(m为正整数)处发生尖锐的变化。分析了零温时系统在不同参数范围内的基态构形,对计算的结果进行了解释。
The calculated formula for partition function of one-Dimensional Fibonacci quasiperiodic frustrated Ising system with free and periodic boundary conditions are given in this paper. Its thermodynamical properties at low temperatures are studied. It is found that when the temperature tends to zero , the thermodynamical quantities as the functions of B/J show discontinuities at B/J=2/(2m+l) (m interger). The ground state configuration of system in various parameter regions are described and the results of calculation are discussed.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
1993年第10期1543-1549,共7页
Acta Physica Sinica
