10:00 AM - 10:15 AM
[16a-Z15-1] Imaging of Magnetic Domain Wall Movement of Soft Magnetic Films in AC Magnetic Field by Alternating MFM: Extension of AC Magnetic Field Frequency
Keywords:magnetic force microscopy
We have developed novel magnetic force microscopy (MFM) which enables to observe magnetic domain wall movement in AC magnetic field by using Alternating magnetic force microscopy (A-MFM) with a sensitive superparamagnetic tip. In this study, to increase the AC magnetic field frequency on the imaging, we fabricated a new AC electromagnet, which applied AC magnetic field to in-plane direction of the sample, and extended the imaging frequency of AC magnetic field from 89 Hz to 1 kHz.