论文标题
强烈的X射线自由电子激光瞬态光栅对TM的磁性域结构的影响：YIG
Effect of intense x-ray free-electron laser transient gratings on the magnetic domain structure of Tm:YIG
论文作者
论文摘要
磁性模式可以使用场或自旋极化电流在全球控制。相反，纳米长度尺度上磁化的局部控制仍然具有挑战性。在这里，我们证明了如何在用垂直磁各向异性的TM掺杂Yttrium铁石榴石（TM：YIG）薄膜中使用磁性域模式，可以由硬X射线短暂瞬态光栅（XTXG）的高强度光子脉冲（XTG）永久地并局部印记。微磁模拟对观察到的TM中磁域的方向的变化提供了定性的理解：YIG和XTG诱导的变化。提出的结果为使用硬XTG进行局部操作提供了一条途径。
Magnetic patterns can be controlled globally using fields or spin polarized currents. In contrast, the local control of the magnetization on the nanometer length scale remains challenging. Here, we demonstrate how magnetic domain patterns in a Tm-doped yttrium iron garnet (Tm:YIG) thin film with perpendicular magnetic anisotropy can be permanently and locally imprinted by high intensity photon pulses of a hard x-ray transient grating (XTG). Micromagnetic simulations provide a qualitative understanding of the observed changes in the orientation of magnetic domains in Tm:YIG and XTG-induced changes. The presented results offer a route for the local manipulation of the magnetic state using hard XTG.
