Back to Search
Start Over
Return Field-Induced Partial Erasure in Perpendicular Recording Using Trailing-Edge Shielded Writers.
- Source :
-
IEEE Transactions on Magnetics . Feb2007 Part 2 of 2, Vol. 43 Issue 2, p600-604. 5p. 10 Graphs. - Publication Year :
- 2007
-
Abstract
- Return field-induced partial erasure (RFPE) in trailing-edge shielded perpendicular writers has been studied, both by modeling and by experiments. For a given head-media combination, the return field underneath the trailing shield increases with increasing write current. Once exceeding a certain threshold, it will cause partial erasure of the bits that have just been written by the main pole. Recording performance, such as reverse overwrite, spectral signal-to-noise ratio, and bit-error rate are all found degraded at high write currents, due to RFPE. Design optimization of both head and media together is needed, in order to maximize the advantage of a trailing-edge shielded pole head and minimize the impact of RFPE. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00189464
- Volume :
- 43
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Magnetics
- Publication Type :
- Academic Journal
- Accession number :
- 23907553
- Full Text :
- https://doi.org/10.1109/TMAG.2006.888198