Abstract
The effect of intertrack intersymbol interference in a magnetic patterned medium is studied. A two-dimensional (2D) channel code is proposed, dedicated to perpendicularly magnetized media without soft underlayer, which exhibit read pulses showing overshoot. Read pulse shapes were investigated using a magnetic-force microscope tip scanning the patterned medium row-by-row. To test different codes, a bit-detection simulation program was developed to generate large amounts of data on which bit error rates can be measured. Application of the 2D channel code, which implies recording of particular dot positions with fixed bits ("ones", "zeros"), resulted in the elimination of 2D worst-case bit patterns and a subsequent reduction of detected-bit errors. The accompanying redundancy of 22% is inevitable for this type of 2D code.
| Original language | Undefined |
|---|---|
| Title of host publication | Abstracts of the 10th Joint MMM/Intermag Conference 2007 |
| Place of Publication | Melville, NY, USA |
| Publisher | American Institute of Physics |
| Pages | 428-428 |
| Number of pages | 1 |
| ISBN (Print) | not assigned |
| Publication status | Published - Jan 2007 |
| Event | 10th Joint MMM–Intermag Conference 2007 - Waterfront Marriott , Baltimore, United States Duration: 7 Jan 2007 → 11 Jan 2007 Conference number: 10 |
Publication series
| Name | |
|---|---|
| Publisher | American Institute of Physics |
| Number | 2 |
Conference
| Conference | 10th Joint MMM–Intermag Conference 2007 |
|---|---|
| Country | United States |
| City | Baltimore |
| Period | 7/01/07 → 11/01/07 |
| Other | Joint meeting of the annual Magnetism and Magnetic Materials Conference and the annual Intermag Conference |
Keywords
- TST-SMI: Formerly in EWI-SMI
- TST-uSPAM: micro Scanning Probe Array Memory
- intertrack interference
- EWI-9110
- METIS-242035
- Magnetic force microscopy
- Two-dimensional coding
- Patterned Media
- perpendicular magnetic recording
- IR-66882