| Presentation | 2019-06-13 Surface morphology of MgO/bcc-CrMn stacked underlayer and magnetic properties of FePt thin film stacked on the underlayer Takashi Saito, Akihiro Shimizu, Shin Saito, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this study, we analyzed the surface morphology of MgO/bcc-CrMn stacked underlayer and magnetic properties of L10 typed FePt thin film stacked on the underlayer by utilizing sputtering for L10-FePt heat assisted magnetic recording (HAMR). As the results, the followings were found; 1) on MgO layer, a network-shaped upheaval structure and a nodule structure were formed, 2) a reduction of CrMn particle size (reduction of CrMn film thickness) is effective for decreasing a size of network-shaped upheaval structure (suppression of formation for nodule structure), 3) the network-shaped upheaval structure had the effect of reducing intergranular exchange coupling for FePt grains. Based on the above results, we have newly proposed a schematic model of HAMR media. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Heat assisted magnetic recording media / columnar nanostructure / MgO layer / grain boundary diffusion / FePt magnetic recording |
| Paper # | MRIS2019-6 |
| Date of Issue | 2019-06-06 (MRIS) |
| Conference Information | |
| Committee | MRIS / ITE-MMS |
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| 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 |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Surface morphology of MgO/bcc-CrMn stacked underlayer and magnetic properties of FePt thin film stacked on the underlayer |
| Sub Title (in English) | |
| Keyword(1) | Heat assisted magnetic recording media |
| Keyword(2) | columnar nanostructure |
| Keyword(3) | MgO layer |
| Keyword(4) | grain boundary diffusion |
| Keyword(5) | FePt magnetic recording |
| 1st Author's Name | Takashi Saito |
| 1st Author's Affiliation | Tohoku University(Tohoku Univ.) |
| 2nd Author's Name | Akihiro Shimizu |
| 2nd Author's Affiliation | Tohoku University(Tohoku Univ.) |
| 3rd Author's Name | Shin Saito |
| 3rd Author's Affiliation | Tohoku University(Tohoku Univ.) |
| Date | 2019-06-13 |
| Paper # | MRIS2019-6 |
| Volume (vol) | vol.119 |
| Number (no) | MRIS-79 |
| Page | pp.pp.27-31(MRIS), |
| #Pages | 5 |
| Date of Issue | 2019-06-06 (MRIS) |