论文标题
FCC晶格上三维偶极模型的相图
Phase diagram of a three-dimensional dipolar model on a FCC lattice
论文作者
论文摘要
从冰上的蒙特卡洛模拟中研究了FCC晶格上具有单轴各向异性的偶极子的零外场的磁相图。单轴各向异性的特征是易于轴的随机分布，其幅度$λ_U$是无序的驱动力，因此令人沮丧。因此，在温度下，考虑了$λ_U$ plane的相位图，将顺磁性，铁磁，准远程远程排序和旋转玻璃区域分开。该系统旨在建模磁性纳米颗粒上部的磁相图。
The magnetic phase diagram at zero external field of an ensemble of dipoles with uniaxial anisotropy on a FCC lattice is investigated from tempered Monte Carlo simulations. The uniaxial anisotropy is characterized by a random distribution of easy axes and its magnitude $λ_u$ is the driving force of disorder and consequently frustration. The phase diagram, separating the paramagnetic, ferromagnetic, quasi long range ordered ferromagnetic and spin-glass regions is thus considered in the temperature, $λ_u$ plane. This system is aimed at modeling the magnetic phase diagram of supracrystals of magnetic nanoparticles.
