自旋s=1的半无限无规场伊辛模型的临界行为

Critical Behavior at the Surface of a Semi-infinite Spin-1 Ising Model with Surface Random Field

该文应用平均场重整化群方法,对s=1的半无限简立方伊辛铁磁体在表面无规场(三峰分布)存在时的表面临界行为进行了研究,得到了系统的表面相图.

In this paper, a renormalization group scheme within the framework of the mean field theory is used to investigate the critical behavior at the surface of a semi-infinite simple-cubic spin-1 Ising ferromagnet. The effects of a random field with trimodal distribution on the surface phase diagrams are obtained.