| Presentation | 2008/7/3 An approach to evaluate magnetic properties of composite perpendicular media using anomalous Hall effect Sarbanoo Das, Takayuki Ichihara, Hiroyuki Suzuki, Yoshibumi Matsuda, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Thickness dependence of cap layer and soft underlayer (SUL), two important layers in a perpendicular magnetic recording (PMR) medium, has been investigated using the Hall effects measurement method. Hall voltage was found to be increasing with increasing cap layer thickness, which is quite different from that of a single layer ferromagnetic thin film case, where the Hall voltage is inversely proportional to the film thickness. For a fixed cap layer thickness, Hall voltage was found to be increasing with decreasing SUL thickness. The method can be applied to monitor the cap layer thickness in the manufacturing of capped media. A bi-layer model based on the experimental data predicts that in a stacked structure of different magnetic thin films with different anomalous Hall coefficients there exists a region where Hall voltage increases with increasing thickness of a layer compared to another one. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Anomalous Hall effect / perpendicular magnetization component / cap layer / soft underlayer |
| Paper # | MR2008-16 |
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| Conference Information | |
| Committee | MR |
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| Conference Date | 2008/7/3(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
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| Paper Information | |
| Registration To | Magnetic Recording (MR) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An approach to evaluate magnetic properties of composite perpendicular media using anomalous Hall effect |
| Sub Title (in English) | |
| Keyword(1) | Anomalous Hall effect |
| Keyword(2) | perpendicular magnetization component |
| Keyword(3) | cap layer |
| Keyword(4) | soft underlayer |
| 1st Author's Name | Sarbanoo Das |
| 1st Author's Affiliation | Hitachi Ltd., Central Research Laboratory() |
| 2nd Author's Name | Takayuki Ichihara |
| 2nd Author's Affiliation | Hitachi Ltd., Central Research Laboratory |
| 3rd Author's Name | Hiroyuki Suzuki |
| 3rd Author's Affiliation | Hitachi Ltd., Central Research Laboratory |
| 4th Author's Name | Yoshibumi Matsuda |
| 4th Author's Affiliation | Hitachi Global Storage Technologies |
| Date | 2008/7/3 |
| Paper # | MR2008-16 |
| Volume (vol) | vol.108 |
| Number (no) | 124 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |