New electron microscope method detects atomic-scale magnetism


Oak Ridge National Laboratory


A new counterintuitive electron microscope approach can collect magnetic signals through the introduction of aberrations. The aberrated probe (right) results in imaging and spectra with lower spatial resolution than a traditionally corrected probe but can pick up a magnetic signature. ORNL’s Juan Carlos Idrobo helped develop an electron microscopy technique to measure magnetism at the atomic scale. Credit: ORNL This is the first time someone has used aberrations to detect magnetic order in materials in electron microscopy, Idrobo said. Juan Carlos Idrobo et al. Detecting magnetic ordering with atomic size electron probes,(2016).


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