论文标题
无定形FEGD多层中偶极子天际的传输特性
Transport properties of dipole skyrmions in amorphous FeGd multilayers
论文作者
论文摘要
通过温度和磁场构型中收集的温度和磁场依赖性电阻率测量值研究了无定形中心对称FE/GD多层的偶极子的传输响应。结果表明，在某些温度下可能形成偶极子晶格相，导致极性纵向电阻率的独特特征。该特征与与条纹阶段相关的常规野外抛物面反应有所不同，条纹阶段过渡到无序的天空阶段。在不同的现场历史方案下的运输测量表明，在特定的野外历史逆转过程中，极性纵向电阻率中的异常出现。我们的实验结果是使用微磁模拟复制的，该模拟表明极地纵向电阻率的异常与域壁重构相关，该结构壁重构是随着域形态从无序条纹转变为施加的垂直场下的Skyrmion晶格的转变。
The transport response of dipole skyrmions in amorphous centrosymmetric Fe/Gd multilayer is investigated by temperature and field-dependent resistivity measurements collected in three current and magnetic field configurations. It is shown that a dipole skyrmion lattice phase may form at certain temperatures leading to a unique signature of the polar longitudinal resistivity. This signature differs from the conventional field-varying parabolic response associated with stripe phases, which transition to a disordered skyrmion phase under applied fields. Transport measurements under different field history protocols reveal that the anomaly in the polar longitudinal resistivity appears under specific field history reversal processes. Our experimental results are reproduced using micromagnetic simulations that show the anomaly in the polar longitudinal resistivity is related to a domain wall reconfiguration that occurs as the domain morphology transitions from disordered stripes to a skyrmion lattice under applied perpendicular fields.
