绘制微磁异质结构器件中的本征光电流流线
Mapping the intrinsic photocurrent streamlines through micromagnetic heterostructure devices
AI总结：
本研究通过扫描光电压显微镜可视化钇铁石榴石微磁异质结构中的本征电荷电流流线，并借鉴Clark Y翼型设计出电翼器件，实现了对电子电荷流动的精确调控与空间映射。
摘要：
如同空气流过机翼，优化电子电荷的流动对于纳米器件的运行至关重要。不幸的是，在复杂器件中电荷、自旋和热之间的微妙相互作用阻碍了对电荷流动的详细成像。在此，我们报告了通过钇铁石榴石微磁异质结构对本征电荷电流流线的可视化。对精确设计的器件进行扫描光电压显微镜观察，产生了引人注目的空间图案，突出的光电压特征出现在角落和狭窄收缩处。这些图案随着外部磁场的旋转而连续演变，使得对流体状流动的丰富空间映射成为可能。受空气动力学Clark Y翼型的启发，我们设计了微磁机翼形器件，称为电翼，它使我们能够精确地扭曲、压缩和减压电子电荷的流线。120 (39) e2221815120
英文摘要：
Like air flowing over a wing, optimizing the flow of electronic charge is essential to the operation of nanoscale devices. Unfortunately, the delicate interplay of charge, spin, and heat in complex devices has precluded detailed imaging of charge flow. Here, we report on the visualization of intrinsic charge current streamlines through yttrium iron garnet micromagnetic heterostructures. Scanning photovoltage microscopy of precisely designed devices leads to striking spatial patterns, with prominent photovoltage features emerging in corners and narrow constrictions. These patterns, which evolve continuously with rotation of an external magnetic field, enable rich spatial mapping of fluid-like flow. Taking inspiration from aerodynamic Clark Y airfoils, we engineer micromagnetic wing shaped devices, called electrofoils, which allow us to precisely contort, compress and decompress flowlines of electronic charge.120 (39) e2221815120
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