Phase Transition of a Distance-Dependent Ising Model on the Barabasi-Albert Network  

作　　者：戴俊 何大韧 

机构地区：[1]College of Mathematics and Physics, Jiangsu University of Science and Technology of China, Zhenjiang 212003 [2]College of Physics Science and Technology, Yangzhou University of China, Yangzhou 225002

出　　处：《Chinese Physics Letters》2007年第12期3355-3357,共3页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No 10635040.

摘　　要：We report our investigation on the behaviour of distance-dependent Ising models, which are located on the BA model network. The interaction strength between two nodes （the spins） is considered to obey an exponential decay dependence on the geometrical distance. The Monte Carlo simulation shows a phase transition from ferromagnetism to paramagnetism, and the critical temperature approaches a constant temperature as the interaction decaying exponent increases.We report our investigation on the behaviour of distance-dependent Ising models, which are located on the BA model network. The interaction strength between two nodes （the spins） is considered to obey an exponential decay dependence on the geometrical distance. The Monte Carlo simulation shows a phase transition from ferromagnetism to paramagnetism, and the critical temperature approaches a constant temperature as the interaction decaying exponent increases.

分 类 号：O4[理学—物理]