镶嵌正方晶格上Gauss模型的相图

物理学报

镶嵌正方晶格上Gauss模型的相图

孙春峰. 2012: 镶嵌正方晶格上Gauss模型的相图, 物理学报, 61(8): 336-340.

引用本文:

孙春峰. 2012: 镶嵌正方晶格上Gauss模型的相图, 物理学报, 61(8): 336-340.

2012: The phase diagram of the Gauss model on a decorated square lattice, Acta Physica Sinica, 61(8): 336-340.

Citation:

2012: The phase diagram of the Gauss model on a decorated square lattice, Acta Physica Sinica, 61(8): 336-340.

The phase diagram of the Gauss model on a decorated square lattice

摘要: 利用等效变换和自旋重标相结合的方法，研究了镶嵌正方晶格上的Gauss模型．研究发现，该系统可以变换为正方晶格上具有最近邻和次近邻相互作用的Gauss系统，由此严格求得了镶嵌正方晶格上Gauss模型的临界温度．得到了该系统的精确相图．
- 镶嵌正方晶格 /
- Gauss模型 /
- 等效变换 /
- 相图
Abstract: Using equivalent transformation and spin-rescaling methods, the Gauss model on a decorated square lattice is studied. It is found that the square decorated Gauss lattice could be transformed into a regular square Gauss lattice with nearest-neighbor, and next-nearest- neighbor interactions. By calculating the regular square-lattice Gauss model, the critical temperature of the Gauss model is obtained on a decorated square lattice, and the exact phase diagram of this system can also be obtained.