| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
|
|
|---|---|---|
| Page(s) | C8-2011 - C8-2012 | |
| DOI | https://doi.org/10.1051/jphyscol:19888913 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-2011-C8-2012
DOI: 10.1051/jphyscol:19888913
1 Research Division, Almaden Research Center, San Jose CA 95120, U.S.A.
2 IBM Magnetic Recording Institute, Almaden Research Center, San Jose CA 95120, U.S.A.
J. Phys. Colloques 49 (1988) C8-2011-C8-2012
DOI: 10.1051/jphyscol:19888913
COMPARING NONLINEAR DISTORTION MECHANISMS IN LONGITUDINAL RECORDING
P. Arnett1, C. Michael Melas1 et I. Beardsley21 Research Division, Almaden Research Center, San Jose CA 95120, U.S.A.
2 IBM Magnetic Recording Institute, Almaden Research Center, San Jose CA 95120, U.S.A.
Abstract
Physical mechanisms of nonlinear distortion in high density recording on longitudinal media are studied using a self consistent 2-D model. These mechanisms include transition shifts, pulse broadening, and amplitude reduction because of overwrite modulation and proximity effects. The dominant mechanism at high density is found to be partial erasure of the preceding transition.