By application of the magneto optical Kerr effect, the rotation of the polarization plane of the reflected light is transformed into a contrast by means of an analyser when the domain magnetization direction change.
The E6NanoFab Evico Magneto-Optical Kerr Microscope & Magnetometer in is able to visualisation of magnetic domains and magnetization processes as well as for optically recording magnetization curves qualitatively on all kinds of magnetic materials, including bulk specimens like sheets or ribbons, magnetic films and multilayers, patterned films or micro- and nanowires.
The In-plane magnetic field range from 10-4 Tesla up to 1.3 Tesla, depends on pole piece configuration and choice of coils. And the observation area is 8 mm x 8 mm min and 30 mm x 30 mm max.