Presentation Information
[25a-P01-22]Simultaneous Measurements of Longitudinal and Transversal Kerr Images of Permalloy Patterns
〇Makoto Niimi1, Jingyi Yuan1, Murali Krishnan Manikketh2, Tomoya Nakatani2, Hirofumi Suto2, Tomoyasu Taniyama3, Takayuki Ishibashi1 (1.Nagaoka Univ. Tech., 2.NIMS, 3.Nagoya Univ.)
Keywords:
magnetic flux concentrator,magnetic domain observation,Magneto-optical effect
In a magnetic flux concentrator (MFC), the magnetic flux distribution at the magnetic sensor section is non-uniform due to the presence of magnetic domains. Therefore, it is necessary to understand the magnetic domain structure of the MFC. However, micromagnetic simulations cannot calculate the magnetic domain structure due to the limited size of the simulation model. Therefore, it is necessary to observe the magnetic domain structure experimentally. On the other hand, simultaneous measurement of longitudinal and transverse Kerr is effective for obtaining magnetization vector information. In this presentation, we report the results of measurements on permalloy patterns of the same composition as MFC.