| Presentation | 2016-12-09 Influence of Underlayer Material on the Surface and the Crystallographic Qualities of L10-FePt Alloy Thin Film Tomoki Shimizu, Masahiro Nakamura, Ryoma Ochiai, Mitsuru Ohtake, Masaaki Futamoto, Fumiyoshi Kirino, Nobuyuki Inaba, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In order to apply FePt alloy thin film with L10 structure to magnetic recording media, etc., it is required to control the film surface flatness. However, the surface of L10-ordered FePt film is generally rough because of clustering of deposited atoms on the substrate surface at high-deposition temperatures. As the surface morphology of epitaxial film is influenced by difference in the surface energy of substrate and film materials, it is useful to investigate the effect of surface energy difference on the surface flatness of L10-ordered FePt film. In the present study, FePt films of 10 nm thickness are deposited on MgO, VC, and, VN underlayers of 2 nm thickness which are prepared on SrTiO3(001) single-crystal substrates at 600 °C. The influence of surface energy of underlayer on the structure of FePt film is investigated. The results indicate that an employment of underlayer material of VN or VC which has a surface energy higher than that of MgO is effective in the preparation of L10-ordered FePt film with flatter surface. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | FePt / L10 structure / surface flatness / epitaxial growth / underlayer / surface energy / single-crystal substarate |
| Paper # | MR2016-40 |
| Date of Issue | 2016-12-01 (MR) |
| Conference Information | |
| Committee | MR / ITE-MMS |
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| Conference Date | 2016/12/8(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Ehime Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Signal Processing, etc. |
| Chair | Yoshihiro Okamoto(Ehime Univ.) / Eiichi Miyashita(NHK) |
| Vice Chair | |
| Secretary | (Kogakuin Univ.) / (AIST) |
| Assistant | Kiwamu Kudo(Toshiba) / Shuhei Yoshida(Kinki Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Magnetic Recording / 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) | Influence of Underlayer Material on the Surface and the Crystallographic Qualities of L10-FePt Alloy Thin Film |
| Sub Title (in English) | |
| Keyword(1) | FePt |
| Keyword(2) | L10 structure |
| Keyword(3) | surface flatness |
| Keyword(4) | epitaxial growth |
| Keyword(5) | underlayer |
| Keyword(6) | surface energy |
| Keyword(7) | single-crystal substarate |
| 1st Author's Name | Tomoki Shimizu |
| 1st Author's Affiliation | Chuo University(Chuo Univ.) |
| 2nd Author's Name | Masahiro Nakamura |
| 2nd Author's Affiliation | Chuo University(Chuo Univ.) |
| 3rd Author's Name | Ryoma Ochiai |
| 3rd Author's Affiliation | Chuo University(Chuo Univ.) |
| 4th Author's Name | Mitsuru Ohtake |
| 4th Author's Affiliation | Kogakuin University/Chuo University(Kogakuin Univ./Chuo Univ.) |
| 5th Author's Name | Masaaki Futamoto |
| 5th Author's Affiliation | Chuo University(Chuo Univ.) |
| 6th Author's Name | Fumiyoshi Kirino |
| 6th Author's Affiliation | Tokyo University of the Arts(Tokyo Univ. Arts) |
| 7th Author's Name | Nobuyuki Inaba |
| 7th Author's Affiliation | Yamagata University(Yamagata Univ.) |
| Date | 2016-12-09 |
| Paper # | MR2016-40 |
| Volume (vol) | vol.116 |
| Number (no) | MR-348 |
| Page | pp.pp.63-67(MR), |
| #Pages | 5 |
| Date of Issue | 2016-12-01 (MR) |