Magnetic Microscopy

Responsible: Dr. Lars Bocklage - FS-PS

Physical and Magnetic Sample Characterization

The DESY NanoLab offers access to an Evico Magnetics Optical Kerr microscope:

Magneto-Optical Domain Imaging and Magnetometry

Applications:

Measurement of magnetic hysteresis of thin films, micro- and nanoelements.

Magnetic domain imaging of thin films, micro- and nanoelemente

 

Optics

Reflection geometry

Objectives with magnification: 20x, 50x, and 100x

Optical resolution: 300 nm

Magneto-optical Kerr effect: Polar, longitudinal and transversal MOKE contrast

 

Sample Environment

Typical sample sizes < 35 mm

Piezo-based drift correction to improve magnetic domain imaging

 

Magnetic Field Options

Quadrupole magnet for in-plane magnetic fields up to 700 mT depending on sample size

Perpendicular coil for out-of-plane magnetic fields up to 100 mT

DC and AC magnetic field modes

 

Post Processing

Software for magnetic hysteresis curve evaluation

Contact

Dr. Lars Bocklage - +49 (0)40 8998 2857
       lars.bocklage@desy.de