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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Naito, K. Hieda, H. Sakurai, M. Kamata, Y. Asakawa, K. |
| Copyright Year | 1965 |
| Abstract | Circumferential magnetic patterned media were prepared on a 2.5-inch-diameter glass plate and on a 3-in-diameter silicon plate. A Ni master disk possessing spiral patterns with 60-250-nm-width lands and a 400-nm-width groove was pressed into a resist film on a CoPt or CoCrPt film to transfer the spiral patterns. A diblock copolymer solution was cast into the obtained grooves and then annealed to prepare self-assembling dot structures aligned along the grooves. According to the dot patterns, the underlying magnetic films were patterned by ion milling to yield patterned media with a 40-nm diameter. Coercive forces and squareness ratios of the patterned media increased compared to those of the continuous media, probably due to the decrement of a demagnetizing field. Single magnetic domains with an almost perpendicular orientation were confirmed in each magnetic dot. |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 1949 |
| Ending Page | 1951 |
| Page Count | 3 |
| File Size | 344264 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 38 |
| Issue Number | 5 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2002-09-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Magnetic films Spirals Self-assembly Perpendicular magnetic recording Resists Milling Magnetic domains Annealing Grain size Signal to noise ratio |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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