We study the Kondo lattice model of multipolar magnetic moments interacting with conduction electrons on a triangular lattice. Bond-dependent electron hoppings induce a compasslike anisotropy in the effective Ruderman-Kittel-Kasuya-Yosida interaction between multipolar moments. This unique anisotropy stabilizes multipolar skyrmion crystals at zero magnetic field. In a unit cell, the skyrmion fractionalizes into meron composites subject to the conservation of total topological charge. Diverse multipolar phases in the phase diagram give rise to novel spontaneous Hall response of conduction electrons.

中文翻译：

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非 Kramers 双合透镜系统中的多极 Skyrmion 晶体


我们研究了三角晶格上的多极磁矩与传导电子相互作用的近藤晶格模型。键依赖性电子跳跃在多极矩之间的有效 Ruderman-Kittel-Kasuya-Yosida 相互作用中诱导罗盘状各向异性。这种独特的各向异性使多极斯格明子晶体稳定在零磁场下。在晶胞中，斯格明子在总拓扑电荷守恒的情况下分馏成梅龙复合材料。相图中不同的多极相引起了传导电子的新型自发霍尔响应。