论文标题
自旋轨道半含量SRIRO3中的各向异性磁化
Anisotropic magnetoresistance in spin-orbit semimetal SrIrO3
论文作者
论文摘要
SRIRO3是Ruddlesden-Popper触发物的三维成员，是一种顺磁的半学，其特征是旋转轨道耦合和库仑排斥之间微妙的相互作用。在这项工作中，我们研究了SRIRO3薄膜的各向异性磁倍率（AMR），该薄膜与自旋轨道耦合密切相关，并在电子传输，磁性和轨道状态之间探测相关性。我们表明，低温负磁磁性相对于磁场方向是各向异性的，其角度依赖性揭示了高于临界磁场上方的四倍对称成分的外观。我们表明，该AMR成分是磁晶的起源，并将观察到的过渡归因于SRIRO3中的场诱导的磁态。
SrIrO3, the three-dimensional member of the Ruddlesden-Popper iridates, is a paramagnetic semimetal characterised by a the delicate interplay between spin-orbit coupling and Coulomb repulsion. In this work, we study the anisotropic magnetoresistance (AMR) of SrIrO3 thin films, which is closely linked to spin-orbit coupling and probes correlations between electronic transport, magnetic order and orbital states. We show that the low-temperature negative magnetoresistance is anisotropic with respect to the magnetic field orientation, and its angular dependence reveals the appearance of a fourfold symmetric component above a critical magnetic field. We show that this AMR component is of magnetocrystalline origin, and attribute the observed transition to a field-induced magnetic state in SrIrO3.
