论文标题
蜂窝状晶格晶体的磁接地态
Magnetic ground states of honeycomb lattice Wigner crystals
论文作者
论文摘要
最近在二维Moiré材料中实现了通过远程库仑相互作用稳定的晶格Wigner晶体状态。我们采用大型无限制的Hartree-fock技术来揭示蜂窝状晶状体晶体的磁相图。对于具有最大电荷差距的三个晶格填充因子，n = 2/3、1/2、1/3，磁相图包含多个阶段，包括具有非共线和非旋转旋转布置的阶段。我们使用外部磁场讨论磁化进化，该磁场具有外在自旋状态的实验特征的潜力。我们的理论结果有可能在由VI型过渡金属二分法型扭曲的同型同类体形成的Moiré材料中得到验证。
Lattice Wigner crystal states stabilized by long-range Coulomb interactions have recently been realized in two-dimensional moiré materials. We employ large-scale unrestricted Hartree-Fock techniques to unveil the magnetic phase diagrams of honeycomb lattice Wigner crystals. For the three lattice filling factors with the largest charge gaps, n = 2/3, 1/2, 1/3, the magnetic phase diagrams contain multiple phases, including ones with non-collinear and non-coplanar spin arrangements. We discuss magnetization evolution with external magnetic field, which has potential as an experimental signature of exotic spin states. Our theoretical results could potentially be validated in moiré materials formed from group VI transition metal dichalcogenide twisted homobilayers.
