Mapping spin-polarized transitions with atomic resolution

Article

关键词: ELECTRON-MICROSCOPE;    CIRCULAR-DICHROISM;    BEAMS;    STEM;   

DOI  :  10.1103/PhysRevB.85.134422

来源: SCIE

【 摘 要 】

The coupling of angstrom-sized electron probes with spin-polarized electronic transitions shows that the inelastically scattered probe electron is in a mixed state containing electron vortices with nonzero orbital angular momentum. These electrons create an asymmetric intensity distribution in energy filtered diffraction patterns, giving access to maps of the magnetic moments with atomic resolution. A feasibility experiment shows evidence of the predicted effect. Potential applications are column-by-column maps of magnetic ordering, and the creation of angstrom-sized free electrons with orbital angular momentum by inelastic scattering in a thin ferromagnetic foil.

【 授权许可】

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