Numerical and Experimental Evaluation of Discrete Track Recording Technology

Numerical and Experimental Evaluation of Discrete Track Recording Technology

Feasibility of discrete track recording (DTR) was evaluated in this paper. Flying height loss due to DTR structure was predicted by an averaged flow model, and it was verified by the touchdown pressure measurement. Based on the spacing analysis, it was concluded that dynamic flying control would be...

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Veröffentlicht in:IEEE transactions on magnetics 2006-10, Vol.42 (10), p.2462-2464
Hauptverfasser: Jih-Ping Peng, Geng Wang, Thrivani, S., Chue, J., Nojaba, M., Thayamballi, P.
Format: Artikel
Sprache:eng
Schlagworte:
Cross-disciplinary physics: materials science
rheology
Digital recording
Discrete track recording (DTR)
Disk recording
Dynamic tests
Dynamics
Exact sciences and technology
Feasibility
Flight
flyability
Flying
Lifting equipment
Magnetic analysis
Magnetic heads
Magnetic materials
Magnetic recording
Magnetism
Materials science
Mathematical models
Other topics in materials science
pattern media
Physics
Recording
Signal to noise ratio
Sputter etching
Touchdown
Tribology
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Zusammenfassung:Feasibility of discrete track recording (DTR) was evaluated in this paper. Flying height loss due to DTR structure was predicted by an averaged flow model, and it was verified by the touchdown pressure measurement. Based on the spacing analysis, it was concluded that dynamic flying control would be necessary for DTR. The magnetic model showed that the DTR's main advantage is in off-track performance while maintaining similar on-track SNR. Magnetic performance of DTR samples was also measured on the spin-stand, and the results were compared to the model
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2006.878635