Title :
Perpendicular magnetic anisotropy in NdCo/TM multilayered films
Author :
Nawate, M. ; Otani, T. ; Tsunashima, S. ; Uchiyama, S.
Author_Institution :
Dept. of Electr. Eng., Nagoya Univ., Japan
fDate :
9/1/1990 12:00:00 AM
Abstract :
The magnetic and magnetooptic properties of NdCo/Co and NdCo/Fe multilayers are investigated. A perpendicular anisotropy in NdCo/Co multilayers increased when the bilayer thickness was decreased, but it was not sufficient to achieve perpendicular magnetization. However, a perpendicular magnetization state could be realized in NdCo/Fe multilayers. Kerr rotation of NdCo/Fe multilayers is larger than 0.4° at the wavelength of 400 nm, but it decreases with decreasing film thickness. Exchange-coupled pseudobilayer structures consisting of NdCo/Fe multilayer and a TbFeCo layer were prepared to improve the characteristics for the recording media
Keywords :
Kerr magneto-optical effect; cobalt; cobalt alloys; iron; magnetic anisotropy; magnetic thin films; magneto-optical recording; neodymium alloys; 400 nm; Kerr rotation; NdCo-Co; NdCo-Fe; TbFeCo layer; bilayer thickness; exchange coupled pseudobilayer structures; magnetooptic properties; multilayered films; perpendicular magnetic anisotropy; perpendicular magnetization; recording media; Anisotropic magnetoresistance; Iron alloys; Magnetic films; Magnetic multilayers; Magnetic properties; Neodymium; Perpendicular magnetic anisotropy; Perpendicular magnetic recording; Saturation magnetization; Substrates;
Journal_Title :
Magnetics, IEEE Transactions on
