,Anisotropic Effects on Magnetoelastic Transition in Magnetic Molecular Rings

• 作 者: LI Peng-Fei CHEN Yu-Guang CHEN Hong
• 机 构: Pohl Institute of Solid State Physics, Tongji University, Shangha 200092
• 出 处: 中国物理快报（英文版）
• 发表日期: 2006年3期

We numerically study the anisotropic effects on the magnetoelastic transition in an S = 1/2 XXZ model with a finite lattice number. It is found that the order of the magnetoelastic transition is strongly affected by the anisotropy parameter A and there may exist a critical λc dividing the first-order transition and the continuous transition.