Scanning Electron Microscopy with Polarisation Analysis
(Result of the month 08/2006)

SEMPA - Scanning Electron Microscopy with Polarisation Analysis
Magnetic domain structure of a Fe whisker imaged with SEMPA. Acquisition time: 5 min. The colour coded image shows the typical fir tree structure with 4 different magnetisation directions, as indicated by the colour wheel. During each measurement 2 orthogonal spin directions are recorded simultaneously, the combination of the two images (example below) may then be displayed as a colour coded image (above).
Horizontal polarisation
Vertical polarisation


Sample courtesy of: Prof. Oepen, Univ. Hamburg, Germany
Measurement by G. Schäfer, Omicron

Further reading: [1] Frömter et al., Appl. Phys. A 76, 869–871 (2003)
[2] Omicron Newsletter Vol 10. No 1. page 2-3 (2006).

 
This result has been obtained with :
SEMPA Detector
NanoSAM Lab

 download as pdf

 
 
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