论文标题
零碎的自旋冰和多$ k $订购稀有地球冰球运动员
Fragmented spin ice and multi-$k$ ordering in rare-earth antiperovskites
论文作者
论文摘要
我们在近角共享的八面体的晶格上研究接近邻居和偶极的伊斯丁模型。在这两个模型的扩展参数范围内，抗铁磁性和类似于旋转的三分之二的规则之间的挫败感使库仑相稳定了库仑相，具有相关的偶极和四极旋转纹理，都产生了独特的中子散布签名。强烈的进一步的近扰动导致两个组件独立订购，从而导致了不寻常的多$ K $订单。我们提出了在稀土反植物中的模型实验实现。
We study near-neighbour and dipolar Ising models on a lattice of corner-sharing octahedra. In an extended parameter range of both models, frustration between antiferromagnetism and a spin-ice-like three-in-three-out rule stabilises a Coulomb phase with correlated dipolar and quadrupolar spin textures, both yielding distinctive neutron-scattering signatures. Strong further-neighbour perturbations cause the two components to order independently, resulting in unusual multi-$k$ orders. We propose experimental realisations of our model in rare-earth antiperovskites.
