中国物理B ›› 2005, Vol. 14 ›› Issue (4): 821-825.doi: 10.1088/1009-1963/14/4/032
郭继勇, 陈宇光, 陈鸿
Guo Ji-Yong (郭继勇), Chen Yu-Guang (陈宇光), Chen Hong (陈鸿)
摘要: The interchain coupling in a model, which is most relevant to organic ferromagnets, is studied by a kind of mean field theory. A full phase diagram is given for this model. It is shown that the interchain coupling dramatically affects the ferromagnetic order in the ground state. When the interchain coupling reaches a critical value, the high-spin ground state disappears and the system may transit from ferromagnetic phase into Kondo-singlet phase.
中图分类号: (Static properties (order parameter, static susceptibility, heat capacities, critical exponents, etc.))