| Presentation | 2019-06-13 Microwave assisted magnetization switching experiments on CoCrPt granular media Katsunaari Sato, Nobuaki Kikuchi, Satoshi Okamoto, Osamu Kitakami, Takehito Shimatsu, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Microwave assisted magnetization switching (MAS) has been expected as one of the prominent future ultra-high density magnetic recording technologies. In MAS, magnetization switching field is reduced by exciting magnetization precession with microwave field. In this work, we have employed Si wafer as a high thermal conductivity substrates, which works as a heat sink during microwave field application. We have successfully suppressed temperature increase by the Joel heating, and have demonstrated MAS experiments on CoCrPt granular media with continuously applied microwave field. Clear assistance effect of 13 % was observed for hrf = 240 Oe, at which no significant assistance effect was observed with pulsed microwave field. The assistance effect reaches to 70 %, for the maximum microwave field amplitude hrf = 950 Oe. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Microwave assisted magnetic recording / Microwave assisted magnetization switching / granular media |
| Paper # | MRIS2019-3 |
| Date of Issue | 2019-06-06 (MRIS) |
| Conference Information | |
| Committee | MRIS / ITE-MMS |
|---|---|
| Conference Date | 2019/6/13(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tohoku Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Recording Systems, etc. |
| Chair | Satoshi Matsunuma(Maxell) / Akihiko Ishii(NHK) |
| Vice Chair | |
| Secretary | (Toshiba) / (Kinki Univ.) |
| Assistant | Ikuya Tagawa(Tohoku Inst. of Tech.) / Hiroko Arai(AIST) |
| Paper Information | |
| Registration To | Technical Committee on Magnetic Recording & Information Storage / Technical Group on Multi-media Storage |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Microwave assisted magnetization switching experiments on CoCrPt granular media |
| Sub Title (in English) | |
| Keyword(1) | Microwave assisted magnetic recording |
| Keyword(2) | Microwave assisted magnetization switching |
| Keyword(3) | granular media |
| 1st Author's Name | Katsunaari Sato |
| 1st Author's Affiliation | Tohoku University(Tohoku Univ.) |
| 2nd Author's Name | Nobuaki Kikuchi |
| 2nd Author's Affiliation | Tohoku University(Tohoku Univ.) |
| 3rd Author's Name | Satoshi Okamoto |
| 3rd Author's Affiliation | Tohoku University(Tohoku Univ.) |
| 4th Author's Name | Osamu Kitakami |
| 4th Author's Affiliation | Tohoku University(Tohoku Univ.) |
| 5th Author's Name | Takehito Shimatsu |
| 5th Author's Affiliation | Tohoku University(Tohoku Univ.) |
| Date | 2019-06-13 |
| Paper # | MRIS2019-3 |
| Volume (vol) | vol.119 |
| Number (no) | MRIS-79 |
| Page | pp.pp.9-14(MRIS), |
| #Pages | 6 |
| Date of Issue | 2019-06-06 (MRIS) |