论文标题
在沮丧的金属间化合物中实现Kagome旋转冰状态
Realization of the kagome spin ice state in a frustrated intermetallic compound
论文作者
论文摘要
自旋冰是物质的异国阶段，其特征是沮丧的旋转服从当地冰规则，类似于水冰中的电偶极子。在二维中，可以类似地定义排列在kagome晶格上的平面内式旋转的冰规则。这些ICE规则要求每个三角形纸质都具有一个单极，并且可以导致各种独特的订单和激发。使用实验和理论方法，包括磁力测定法，热力学测量，中子散射和蒙特卡洛模拟，我们将HOAGGE建立为晶体（即非人造）系统，该系统实现了Kagome Spin Ice状态。该系统具有各种部分和完全有序的状态以及在低温下的一系列场诱导的相位，所有这些均与Kagome ICE规则一致。
Spin ices are exotic phases of matter characterized by frustrated spins obeying local ice rules, in analogy with the electric dipoles in water ice. In two dimensions, one can similarly define ice rules for in-plane Ising-like spins arranged on a kagome lattice. These ice rules require each triangle plaquette to have a single monopole, and can lead to various unique orders and excitations. Using experimental and theoretical approaches including magnetometry, thermodynamic measurements, neutron scattering and Monte Carlo simulations, we establish HoAgGe as a crystalline (i.e. non-artificial) system that realizes the kagome spin ice state. The system features a variety of partially and fully ordered states and a sequence of field-induced phases at low temperatures, all consistent with the kagome ice rule.
