Magnetic Softness and Domain Wall Structures of Double-Layered Amorphous Co-Zr-Nb Films
- 1 March 1986
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 25 (3R) , 419-424
- https://doi.org/10.1143/jjap.25.419
Abstract
The magnetization process, domain wall structures and soft magnetic properties of amorphous Co-Zr-Nb double-layered films with various uniaxial anisotropies were investigated. Observation of the domain structure showed that intermediate SiO2 films formed by sputtering prevent direct exchange coupling between the magnetic films when their thicknesses are above 20 Å. A different magnetization process from those found in Permalloy multilayered films formed by evaporation was seen in the present amorphous films. The drastic improvement of the magnetic softness in double-layered films with very thin magnetic and nonmagnetic layers is useful for improving the recording density in perpendicular magnetic recording systems.Keywords
This publication has 7 references indexed in Scilit:
- Effect of domain structure of main pole film on reproducting sensitivity of S.P.T. head.Journal of the Magnetics Society of Japan, 1985
- Sputtering of amorphous Co-Zr and Co-Hf films with soft magnetic propertiesJournal of Applied Physics, 1982
- Magnetic Coupling between Two Ni-Fe Layers Separated by SiO Intermediate LayerJapanese Journal of Applied Physics, 1972
- Theory of Domain-Wall Structure in Multiple Magnetic FilmsIBM Journal of Research and Development, 1966
- Domain-Wall Structures in Magnetic Double FilmsJournal of Applied Physics, 1966
- Wall Transitions in Coupled FilmsJournal of Applied Physics, 1965
- Very Low Coercive Force in Nickel–iron FilmsNature, 1962