August 2016

Journal

Aberrated electron probes for novel spectroscopy with atomic resolution: theory and practical aspects

By:
Rusz, Jan; Idrobo Tapia, Juan C
Journal Name:
Physical Review B
Page Number:
104420
Volume:
93
Issue Number:
10
Publication Date:
August 2016
View DOI Listing:
https://doi.org/10.1103/PhysRevB.93.104420

Abstract

It was recently proposed that electron magnetic circular dichroism (EMCD) can be measured in scanning transmission electron microscopy (STEM) with atomic resolution by tuning the phase distribution of a electron beam. Here, we describe the theoretical and practical aspects for the detection of out-of-plane and in-plane magnetization utilizing atomic size electron probes. We present the calculated optimized astigmatic probes and discuss how to achieve them experimentally.