光磁気記録磁界変調用磁性薄膜マイクロコイル : 磁気光学・光磁気記録

概要

論文の詳細を見る
We developed a prototype magnetic field modulation (MFM) coil with a magnetic core on a silicon substrate. The magnetic core, consisting of a CoFeSiB/SiO_2 composite multi-layered film, has a high quality factor of more than 70 at high frequency of 100 MHz. For a micro-MFM coil, high field strength of more than 200 G(16 kA/m) must be generated in the center of the coil at a high frequency and a low driving current. Whereas an air-core coil requires a high driving current, a magnetic core coil can be driven at a lower driving current. We simulated the magnetic field strength of the vertical section of this MFM coil using 3D-Maxwell simulation.
社団法人日本磁気学会の論文
2002-04-01