A model for overwrite modulation in longitudinal recording

Fayling, R.; Szczech, T.; Wollack, Edward J.

doi:10.1109/tmag.1984.1063384

Cited by 28 publications

(6 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A number of authors have investigated different aspects of overwrite [2]- [7]. Overwrite arises from three predominant mechanisms: residue, modulation and track edge effect.…”

Section: Introductionmentioning

confidence: 99%

Overwrite in thin film disk recording systems

1993

View full text Add to dashboard Cite

Overwrite in thin film rigid disk recording has been studied experimentally using disks with a wide range of magnetic moment and coercivity. Standardh/J overwrite was investigated in detail at various recording currents and different flying heights. A theoretical model was developed using simple analytical approximations that relate demagnetization-field-induced position shift (hard transition shift) to the measured overwrite. The demagnetization fields due to the leading edge transitions were calculated analytically including a good approximation to the gapped head image. The results compare well with experimental measurements. A new overwrite measurement technique using the second harmonic component of a 0.5J signal is also described in this work.

show abstract

“…A number of authors have investigated different aspects of overwrite [2]- [7]. Overwrite arises from three predominant mechanisms: residue, modulation and track edge effect.…”

Section: Introductionmentioning

confidence: 99%

Overwrite in thin film disk recording systems

1993

View full text Add to dashboard Cite

show abstract

“…1. One component, the overwrite modulation signal due to hard and soft transitions [2], is usually distributed across the entire track, with some peaking possible at the track edge. The other component, the residual overwrite signal due to incomplete erasure, is generally localized at the track edges [3], due to the track width dependence on write frequency and density.…”

Section: Overwrite and Interference Effectsmentioning

confidence: 99%

Write bubble measurement under realistic recording conditions

Steiner

Palmer

2001

IEEE Trans. Magn.

View full text Add to dashboard Cite

show abstract

“…Overwrite is a complex process, where the residual signal is mainly determined by incomplete erasure due to insufficient write field, and overwrite modulation due to transition shifts [4]. Both influences are usually more pronounced at the track edges than on-track, because of the write field degradation with the frequency [5].…”

Section: Introductionmentioning

confidence: 99%

Analysis of side writing asymmetry

Hozoi

Groenland

Albertini³

et al. 2003

IEEE Trans. Magn.

View full text Add to dashboard Cite

The side writing asymmetry of a recording head was investigated using an overwrite configuration that enhances the edge effects. The track profiles of the overwrite patterns were measured for analyzing the side writing performance of the head. Magnetic force microscope (MFM) images of the overwrite patterns were studied using fast Fourier transforms (FFT), and they confirmed the profiling results. We measured weak edge effects at good pole alignment. The experiments were performed with metal evaporated (ME) and metal particle (MP) tapes having magnetic layers between 50 and 300 nm.

show abstract

A model for overwrite modulation in longitudinal recording

Cited by 28 publications

References 4 publications

Overwrite in thin film disk recording systems

Overwrite in thin film disk recording systems

Write bubble measurement under realistic recording conditions

Analysis of side writing asymmetry

Contact Info

Product

Resources

About