Is there any free software to calculate the domain size from MFM images?

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Questionnaire what use ?

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Sergei Sergeenkov

Yes, it is called OOMMF. Follow the link to download the latest version.

http://math.nist.gov/oommf/software.html

Here is a useful tutorial for installing and running this soft.

http://deparkes.co.uk/oommf/oommf-tutorial/

Ibrahim Alghoraibi

Gwyddion-2.37.win32

SPM Image Magic

WSxM

ImageAnalyzer2

http://gwyddion.net/download/2.37/

http://imagej.net/Downloads

http://www.nanotec.es/products/wsxm/

S. K. Parida

yes you can calculate particle size by ImageJ and OOMMF software