In chapter 3, we give a study of the staircase hysteresis loop of Mn12 system based on Landau-Zener (LZ) model and numerically calculation method of exact diagonalization of Hamiltonian.

• 第三章，我们给出了用Landau-Zenner模型和严格对角化的数值计算方法，对Mn12体系中阶梯状磁滞回路所作的一些研究；