4:00 PM - 4:15 PM [10p-Z06-14] Magnetic Imaging of Domain Wall Movement of Soft Magnetic Films in AC Magnetic Field by Alternating Magnetic Force Microscopy 〇(M1)Yutaka Narita1, Tsubasa Osaka1, Hiroshi Sonobe1, Hitoshi Saito1 (1.Akita Univ.)