J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988Proceedings of the International Conference on Magnetism
|Page(s)||C8-1995 - C8-1996|
J. Phys. Colloques 49 (1988) C8-1995-C8-1996
MICROMAGNETIC STUDIES OF DISCRETE TRACKS USING LORENTZ MICROSCOPYT. A. Nguyen1, 2, I. R. McFadyen1, 2, C. Hwang1, 3 et P. S. Alexopoulos1, 2
1 IBM Research Division, Almaden Research Center, 650 Harry Road, San Jose, California 95120-6099, U.S.A.
2 IBM Magnetic Recording Institute.
3 IBM General Products Division.
Written bits on 0.6 to 10 µm wide discrete tracks have been studied. Lorentz microscopy shows the bits to be well-defined and in saturated remanence state. Ripple structure observed within the bit extends to the track edges. The transition zone is about 3000 Å in width and consists of both ripple and vortex-like structures.