| Presentation | 2021-10-08 Structure and Magnetostrictive Properties of Fe-Co Alloy Single-Crystal Thin Films and Poly-Crystal Thick Films Yuta Nakamura, Shunsuke Aketa, Hikaru Kondo, Mitsuru Ohtake, Tetsuroh Kawai, 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) | Fe-Co alloys with large magnetostriction have attracted much attention to magnetostrictive vibration power generation device. In the present study, (Fe0.7Co0.3)100?xBx (at. %, x = 0?15) alloy single-crystalline films of 100 nm thickness are prepared on VN(001) single-crystal substrates at a high substrate temperature of 600 °C by UHV magnetron sputtering to investigate the intrinsic magnetostriction property. As the B content increases from 0 to 5 at. %, the magnetostrictive coefficients of (λ100, λ111) increase from (+200×10?6, ?10×10?6) to (+310×10?6, +20×10?6). Slight addition of B atom promotes B2 ordering while keeping the crystallographic quality and enhances the magnetostriction. Thickness in micrometer scale is required for practical application. Electroplating is employed to prepare thick Fe100?yCoy (y = 0?95) alloy films. The λ values of Fe70Co30 and Fe30Co70 poly-crystalline thick films are respectively +120×10?6 and +130×10?6. Fe-Co thick films with large magnetostriction are successfully prepared by electroplating. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Fe-Co Alloy / Single-Crystalline Thin Film / Poly-Crystalline Thin Film / Magnetostriction |
| Paper # | MRIS2021-6 |
| Date of Issue | 2021-10-01 (MRIS) |
| Conference Information | |
| Committee | MRIS / ITE-MMS |
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| Conference Date | 2021/10/8(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Recording Head, Spintronics, Solid State Memory, Media, etc. |
| Chair | Shuhei Yoshida(Kinki Univ.) / Kenji Machida(NHK) |
| Vice Chair | |
| Secretary | (Tohoku Inst. of Tech.) / (AIST) |
| Assistant | Yasuaki Nakamura(Ehime Univ.) / Yoshiyuki Hirayama(Samsung) |
| 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) | Structure and Magnetostrictive Properties of Fe-Co Alloy Single-Crystal Thin Films and Poly-Crystal Thick Films |
| Sub Title (in English) | |
| Keyword(1) | Fe-Co Alloy |
| Keyword(2) | Single-Crystalline Thin Film |
| Keyword(3) | Poly-Crystalline Thin Film |
| Keyword(4) | Magnetostriction |
| 1st Author's Name | Yuta Nakamura |
| 1st Author's Affiliation | Yokohama National University(Yokohama Nat. Univ.) |
| 2nd Author's Name | Shunsuke Aketa |
| 2nd Author's Affiliation | Yokohama National University(Yokohama Nat. Univ.) |
| 3rd Author's Name | Hikaru Kondo |
| 3rd Author's Affiliation | Yokohama National University(Yokohama Nat. Univ.) |
| 4th Author's Name | Mitsuru Ohtake |
| 4th Author's Affiliation | Yokohama National University(Yokohama Nat. Univ.) |
| 5th Author's Name | Tetsuroh Kawai |
| 5th Author's Affiliation | Yokohama National University(Yokohama Nat. Univ.) |
| 6th Author's Name | Masaaki Futamoto |
| 6th Author's Affiliation | Yokohama National University(Yokohama Nat. Univ.) |
| 7th Author's Name | Fumiyoshi Kirino |
| 7th Author's Affiliation | Tokyo University of the Arts(Tokyo Univ. Arts) |
| 8th Author's Name | Nobuyuki Inaba |
| 8th Author's Affiliation | Yamagata University(Yamagata Univ.) |
| Date | 2021-10-08 |
| Paper # | MRIS2021-6 |
| Volume (vol) | vol.121 |
| Number (no) | MRIS-193 |
| Page | pp.pp.1-5(MRIS), |
| #Pages | 5 |
| Date of Issue | 2021-10-01 (MRIS) |