论文标题
通过ptychographic阶段检索的磁性原子分辨率成像
Atomic-resolution imaging of magnetism via ptychographic phase retrieval
论文作者
论文摘要
固体中自旋纹理的原子尺度表征对于理解和调整磁性材料和设备的特性至关重要。尽管使用高能电子进行原子尺度的材料成像，但它们对自旋纹理不敏感。通常，对高能电子波的阶段的磁贡献比静电电位弱1000倍。通过通过电子ptychography进行准确的相位检索，我们在这里表明磁相可以与静电相分离，从而打开了磁性材料和旋转设备中自旋纹理的原子分辨率表征的门。
Atomic-scale characterization of spin textures in solids is essential for understanding and tuning properties of magnetic materials and devices. While high-energy electrons are employed for atomic-scale imaging of materials, they are insensitive to the spin textures. In general, the magnetic contribution to the phase of high-energy electron wave is 1000 times weaker than the electrostatic potential. Via accurate phase retrieval through electron ptychography, here we show that the magnetic phase can be separated from the electrostatic one, opening the door to atomic-resolution characterization of spin textures in magnetic materials and spintronic devices.
