梯形Frustrated伊辛模型的低温热力学性质

The Thermodynamical Properties of Ladder Frustrated Ising Models at Low Temperature

导出了梯形Ｆｒｕｓｔｒａｔｅｄ伊辛模型配分函数的叠代公式，研究了三种模型的低温热力学性质，发现当温度趋于零时，其热力学函数在某些参数值发生尖锐的变化，详细分析了三种模型在不同参数范围内的基态构形。

The iteration formula for the partition functions of the ladder frustrated Ising model is derived and the thermodynamical properties of three models at low temperature is studied.It is found that when the temperature tends to zero,the thermodynamical quantities show discontinuities at some values of parameter.Their ground state configurations at the different parameter regions and the reasons of singularity are analysed.