论文标题
使用确定性放置的纳米符号的局部铁磁共振测量
Local ferromagnetic resonance measurements of mesoscopically patterned ferromagnets using deterministically placed nanodiamonds
论文作者
论文摘要
最近已经确定了钻石中的氮 - 视口中心，成为替代铁磁材料中磁化动力学的有效传感器。我们证明了含氮纳米木符号的低100 nm放置精度，并将其用作局部传感器，这些传感器在介质图案化的或其中探测了光学检测到的铁磁共振。这些测量结果揭示了这些结构上不同位点的铁磁共振信号的变化，在边缘和大部分图案特征中具有独特的行为。这些测试测量为在中尺度铁磁体中旋转动力学的空间靶向测量提供了易于实现的方法。原则上，该方法还可以扩展到纳米级铁磁体的局部研究，例如单磁纳米线和纳米颗粒。
Nitrogen-vacancy centers in diamond have recently been established as effective sensors of the magnetization dynamics in vicinal ferromagnetic materials. We demonstrate sub-100 nm placement accuracy of nitrogen-vacancy-containing nanodiamonds and use these as local sensors that probe optically detected ferromagnetic resonance in mesoscopically patterned Permalloy islands. These measurements reveal variations in the ferromagnetic resonance signal at different sites on these structures with distinct behavior in the edge and the bulk of patterned features. These test measurements establish an easily implemented approach for spatially targeted measurements of spin dynamics in mesoscale ferromagnets. In principle, the methodology can also be extended to local studies of nanoscale ferromagnets such as single magnetic nanowires and nanoparticles.
