论文标题
$ \ textrm {cri} _3 $磁性阶段的DMRG和Monte Carlo研究
DMRG and Monte Carlo studies of $\textrm{CrI}_3$ magnetic phases and the phase transition
论文作者
论文摘要
据报道，$ \ textrm {cri} _3 $的单层_3 $展示了铁磁秩序，居里温度为$ 45 k $和平面易于轴，这引起了凝聚态物理物理学社区的广泛关注。使用密度矩阵重新归一化组方法，我们研究了相关效应的作用，并使用经典的蒙特卡洛模拟分析了honeycomb晶格中XXZ Hamiltonian中相变的性质，该蜂窝晶格可以有效地对$ \ textrm {cri} _3 $进行建模。我们表明，在广泛的各向异性参数空间中，经典模型可以很好地近似哈密顿量基态的磁顺序。使用经典的蒙特卡洛模拟，我们估计居里温度为$ 49.7 k $，这与实验结果非常吻合。
The monolayer of $\textrm{CrI}_3$ has been reported to exhibit the ferromagnetic order, with a Curie temperature of $45 K$ and off-plane easy axis, which has attracted much attention in the community of condensed matter physics. Using the Density Matrix Renormalization Group method, we investigate the role of correlation effects and using classical Monte Carlo simulations analyze the nature of phase transitions in the XXZ Hamiltonian on a honeycomb lattice, which can effectively model $\textrm{CrI}_3$. We show, that the magnetic ordering of the Hamiltonian's ground state can be well approximated by classical models in a wide range of an anisotropy parameter space. Using classical Monte Carlo simulations we estimate the Curie temperature of $49.7 K$ which is in good agreement with experimental result.
