Abstract
This paper reviews the research done on soft-magnetic fluxguide materials for use in sandwich heads and in thin-film recording heads for digital magnetic recording. After dealing with the basic principles of magnetic recording, the requirements on modern soft-magnetic materials are discussed. The roles of magnetic anistropy and magnetostriction in relation to permeability are discussed. Next, we review the recent advances in soft-magnetic materials processing, in particular for amorphous cobalt (Co-Nb-Zr) and nanocrystalline iron alloys, such as Fe-M-X, with M being group IVa-Va metals such as Zr, Hf, Nb, Ta, etc., and X being N and O.
Original language | English |
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Pages (from-to) | 59-91 |
Number of pages | 33 |
Journal | Philips Journal of Research |
Volume | 51 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1 Jan 1998 |
Externally published | Yes |
Keywords
- Amorphous cobalt
- Field annealing
- Fluxguide
- Magnetic anisotropy
- Magnetostriction
- Nanocrystalline iron
- Rapid thermal processing
- Soft-magnetic materials