| Presentation | 2018-06-08 Effects of FGL with Negative Anisotropy Constant on Reduction of Injection Current Density Fumiko Akagi, Aina Kase, Zeon Sai, Kazuetsu Yoshida, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Microwave assisted magnetic recording(MAMR) is one of the promising recording methods to achieve high magnetic recording of a hard disk drive. MAMR assists magnetic recording using the spin torque oscillator (STO). Here, an injection current density J applied to the STO is required lower than 1×10^12 A/m^2. In this study, effects of structures of a spin injection layer (SIL) on the reduction of J in case of a field generation layer (FGL) with a negative anisotropy constant were investigated by using LLG simulator. As a result, when the FGL was between two SILs, the J could be reduced to 1.40×1012 A/m^2, however, the AC-field was obtained only 46 kA/m. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | icrowave assisted magnetic recording / Negative anisotropy constant / Dual SIL / Injection current density |
| Paper # | MRIS2018-9 |
| Date of Issue | 2018-05-31 (MRIS) |
| Conference Information | |
| Committee | MRIS / ITE-MMS |
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| Conference Date | 2018/6/7(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) / Norihiko Ishii(NHK) |
| Vice Chair | |
| Secretary | (Toshiba) / (Kinki Univ.) |
| Assistant | Ikuya Tagawa(Tohoku Inst. of Tech.) / Shuhei Yoshida(AIST) |
| Paper Information | |
| Registration To | Technical Committee on Magnetic Recording & Information Storage / Technical Group on Multi-media Storage |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Effects of FGL with Negative Anisotropy Constant on Reduction of Injection Current Density |
| Sub Title (in English) | |
| Keyword(1) | icrowave assisted magnetic recording |
| Keyword(2) | Negative anisotropy constant |
| Keyword(3) | Dual SIL |
| Keyword(4) | Injection current density |
| 1st Author's Name | Fumiko Akagi |
| 1st Author's Affiliation | Kogakuin University(Kogakuin Univ.) |
| 2nd Author's Name | Aina Kase |
| 2nd Author's Affiliation | Kogakuin University(Kogakuin Univ.) |
| 3rd Author's Name | Zeon Sai |
| 3rd Author's Affiliation | Kogakuin University(Kogakuin Univ.) |
| 4th Author's Name | Kazuetsu Yoshida |
| 4th Author's Affiliation | Kogakuin University(Kogakuin Univ.) |
| Date | 2018-06-08 |
| Paper # | MRIS2018-9 |
| Volume (vol) | vol.118 |
| Number (no) | MRIS-74 |
| Page | pp.pp.49-54(MRIS), |
| #Pages | 6 |
| Date of Issue | 2018-05-31 (MRIS) |