| Presentation | 2004/7/2 Signal induced noise from soft magnetic layer on double layer perpendicular recording media Takahiro KUROSAWA, Naoki HONDA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Signal induced noise from soft magnetic layer on double layer perpendicular recording media was investigated by separating read-back signals of GMR head into medium fixed noise and moving noise. On Fe-Co-Al-O soft magnetic layer medium, power of signal induced noise did not depend on the recording density when recording density is less than 160 kFRPI. The power of signal induced noise decreased with increasing the recording density larger than 160 kFRPI. This recording density dependence of signal induced noise is caused from the recording density dependence of variance of read-back signal when read-back signal is negative value. While on Fe-Si-N soft magnetic layer medium, power of signal induced noise did not depend on the recording density when recording density is less than 80 kFRPI and decreased with increasing the recording density larger than 80 kFRPI. The variance of read-back signal did not depend on the polarity of read-back signal and caused at random position on recorded track. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | perpendicular magnetic recording / spike-noise / soft magnetic layer / variation of readback signal |
| Paper # | MR2004-7 |
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| Conference Information | |
| Committee | MR |
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| Conference Date | 2004/7/2(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Magnetic Recording (MR) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Signal induced noise from soft magnetic layer on double layer perpendicular recording media |
| Sub Title (in English) | |
| Keyword(1) | perpendicular magnetic recording |
| Keyword(2) | spike-noise |
| Keyword(3) | soft magnetic layer |
| Keyword(4) | variation of readback signal |
| 1st Author's Name | Takahiro KUROSAWA |
| 1st Author's Affiliation | AKITA research institute of advanced technology() |
| 2nd Author's Name | Naoki HONDA |
| 2nd Author's Affiliation | AKITA research institute of advanced technology |
| Date | 2004/7/2 |
| Paper # | MR2004-7 |
| Volume (vol) | vol.104 |
| Number (no) | 167 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |