光电发射电子显微镜中的原位接触和电流注入
In-Situ Contacting and Current-Injection into Samples in Photoemission Electron Microscopes
摘要：
研究自旋极化电流与磁化结构的相互作用由于其可能的应用和所涉及的新物理而引起人们的高度兴趣。高分辨率磁成像是更好地理解这些效应所必需的关键技术之一。在这里，我们提出了一个扩展的磁显微镜，允许在原位电流注入到结构的研究，并进一步研究在脉冲电流注入过程中的电流诱导磁化强度的变化。开发的设置是高度灵活的，可用于广泛的调查。电流引起的畴壁运动和涡核位移测量使用此设置的例子。
英文摘要：
Studying the interaction of spin-polarized currents with the magnetization configuration is of high interest due to the possible applications and the novel physics involved. High resolution magnetic imaging is one of the key techniques necessary for a better understanding of these effects. Here we present an extension to a magnetic microscope that allows for in-situ current injection into the structure investigated and furthermore for the study of current induced magnetization changes during pulsed current injection. The developed setup is highly flexible and can be used for a wide range of investigations. Examples of current-induced domain wall motion and vortex core displacements measured using this setup are presented.
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