论文标题
自发性的循环顺序介导极金属中的自旋逆转过渡
Spontaneous cycloidal order mediating a spin-reorientation transition in a polar metal
论文作者
论文摘要
我们展示了当磁相互作用在具有极地晶格扭曲的金属竞争时，复杂的调制顺序如何自发出现。将中子和谐振X射线散射与对称分析相结合，我们揭示了CA $ _3 $ ru $ _2 $ _2 $ o $ _7 $中的自旋重新定位是由磁性环体介导的，其偏心型的偏心速度会顺利演变，但随着温度而迅速发展。我们发现环形对磁场高度敏感，似乎连续产生更高的谐波调制。我们的结果提供了这种相关的多波段极性金属丰富的磁性阶段的统一图片。
We show how complex modulated order can spontaneously emerge when magnetic interactions compete in a metal with polar lattice distortions. Combining neutron and resonant x-ray scattering with symmetry analysis, we reveal that the spin reorientation in Ca$_3$Ru$_2$O$_7$ is mediated by a magnetic cycloid whose eccentricity evolves smoothly but rapidly with temperature. We find the cycloid to be highly sensitive to magnetic fields, which appear to continuously generate higher harmonic modulations. Our results provide a unified picture of the rich magnetic phases of this correlated, multi-band polar metal.
