TY  - JOUR
AU  - Muto, Shunsuke
AU  - Rusz, Ján
AU  - Tatsumi, Kazuyoshi
AU  - Adam, Roman
AU  - Arai, Shigeo
AU  - Kocevski, Vancho
AU  - Oppeneer, Peter M.
AU  - Bürgler, Daniel E.
AU  - Schneider, Claus M.
TI  - Quantitative characterization of nanoscale polycrystalline magnets with electron magnetic circular dichroism
JO  - Nature Communications
VL  - 5
SN  - 2041-1723
CY  - London
PB  - Nature Publishing Group
M1  - FZJ-2014-01245
SP  - 3138
PY  - 2014
AB  - Electron magnetic circular dichroism (EMCD) allows the quantitative, element-selective determination of spin and orbital magnetic moments, similar to its well-established X-ray counterpart, X-ray magnetic circular dichroism (XMCD). As an advantage over XMCD, EMCD measurements are made using transmission electron microscopes, which are routinely operated at sub-nanometre resolution, thereby potentially allowing nanometre magnetic characterization. However, because of the low intensity of the EMCD signal, it has not yet been possible to obtain quantitative information from EMCD signals at the nanoscale. Here we demonstrate a new approach to EMCD measurements that considerably enhances the outreach of the technique. The statistical analysis introduced here yields robust quantitative EMCD signals. Moreover, we demonstrate that quantitative magnetic information can be routinely obtained using electron beams of only a few nanometres in diameter without imposing any restriction regarding the crystalline order of the specimen
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000331097100002
C6  - pmid:24451994
DO  - DOI:10.1038/ncomms4138
UR  - https://juser.fz-juelich.de/record/151254
ER  -