论文标题
掺杂的双层过渡金属二核苷中的原位可控磁相
In situ controllable magnetic phases in doped twisted bilayer transition-metal dichalcogenides
论文作者
论文摘要
我们研究了小型扭曲天使的孔掺杂金属二核苷的电子结构，那里的现场排斥力非常强。使用无偏见的蒙特卡洛模拟，我们找到了磁相关性的证据，这些磁相关性是由Dielectric环境驱动的，可以在原位控制。对于弱自旋轨道耦合，我们发现适度掺杂的系统变成了抗铁磁，而强的自旋轨道耦合的状态具有铁磁相关性。我们表明，基于哈密顿量的力矩扩展以及对相应粒子轨迹的分析，可以准确预测这种行为。
We study the electronic structure of hole-doped transition metal dichalcogenides for small twist-angels, where the onsite repulsion is extremely strong. Using unbiased diagrammatic Monte Carlo simulations, we find evidence for magnetic correlations which are driven by delocalization and can be controlled in situ via the dielectric environment. For weak spin-orbit coupling, we find that the moderately doped system becomes anti-ferromagnetic, whilst the regime of strong spin-orbit coupling features ferromagnetic correlations. We show that this behavior is accurately predicted by an analytical theory based on moment expansion of the Hamiltonian, and analysis of corresponding particle trajectories.
