| 摘要 |
PURPOSE:To obtain a medium with excellent static magnetism characteristic such as coercive force and rectangular ratio while using inexpensive Fe' by laminating plural thin film layers made of iron or iron alloy formed by the oblique vapor deposition method on a nonmagnetic base and providing a synthetic resin made intermediate layer between thin film layers. CONSTITUTION:The magnetic thin film layers 2, 4 and 6 are formed by the oblique vapor deposition method using an Fe group magnetic material as a vapor deposition source. The magnetic thin film layers are formed by the oblique vapor deposition where the surface of the base 1 is vapor-deposited by using the vapor deposition source 9 arranged under a drum 8 while the nonmagnetic base 1 supplied from, e.g., a winding reel 7 is contacted to the cooling drum 8 and moved. The base after vapor-deposition in wound on a reel 10. The intermediate layers 4 and 5 are made of synthetic resin layers. The intermediate layers 4 and 5 shut off magnetically the magnetic thin film layers 2, 4 and 6 and have the surface with excellent coating state. |
