抄録
In Magnetic Amplifying Magneto Optical System (MAMMOS), a small domain in the recording layer is copied to the readout layer where the domain is expanded to a high level readout signal. After the expansion, the domain should be collapsed for reading out the next information. Therefore, the velocity of expansion and shrinking of the domains is one of the most important parameters which certainly affects the high speed performance of MAMMOS.
We have developed a stroboscopic microscope system for observing domain dynamic phenomena. By using this system, domain shrinking processes are observed under a variety of applied fields and the influence of the in-plane magnetic field on the shrinking speed is also measured.
