Presentation 2016-07-08
Preparation of Bi-layer Epitaxial Magnetic Films Consisting of L10 Ordered Alloy and Co Thin Films on MgO Substates
Ryoma Ochiai, Masahiro Nakamura, Mitsuru Ohtake, Masaaki Futamoto, Fumiyoshi Kirino, Nobuyuki Inaba,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Multilayer films consisting of hard and soft magnetic materials have been studied to investigate the possibilities for anisotropic nanocomposite magnet and high-density perpendicular media. Although rare-earth based magnetic materials are commonly employed as the hard magnetic material, L10-ordered alloys are also considered to be the candidate for the hard magnetic material. In the present study, epitaxial bi-layer films consisting of FePt or FePd and Co layers are prepared on MgO(001) single-crystal substrates to investigate the possibility in forming well controlled hard/soft multilayer magnetic thin films. The FePt layer in Co/FePt bi-layer film formed on MgO(001) is found to be consisting of only L10(001) variant, whereas FePt single-layer is consisting of L10(100), (010) variants in addition to the L10(001) variant. The structure of L10 ordered layer in bi-layer film has been shown to vary delicately depending on the stacking sequence.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) FePd / FePt / Co / L10 structure / epitaxial growth / single-crystal substrate / thin film
Paper # MR2016-15
Date of Issue 2016-07-01 (MR)

Conference Information
Committee MR / ITE-MMS
Conference Date 2016/7/8(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Chuo Univ.
Topics (in Japanese) (See Japanese page)
Topics (in English) Solid State Memory, Media, 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
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Preparation of Bi-layer Epitaxial Magnetic Films Consisting of L10 Ordered Alloy and Co Thin Films on MgO Substates
Sub Title (in English)
Keyword(1) FePd
Keyword(2) FePt
Keyword(3) Co
Keyword(4) L10 structure
Keyword(5) epitaxial growth
Keyword(6) single-crystal substrate
Keyword(7) thin film
1st Author's Name Ryoma Ochiai
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 Mitsuru Ohtake
3rd Author's Affiliation Kogakuin University/Chuo University(Kogakuin Univ./Chuo Univ.)
4th Author's Name Masaaki Futamoto
4th Author's Affiliation Chuo University(Chuo Univ.)
5th Author's Name Fumiyoshi Kirino
5th Author's Affiliation Tokyo University of the Arts(Tokyo Univ. Arts)
6th Author's Name Nobuyuki Inaba
6th Author's Affiliation Yamagata University(Yamagata Univ.)
Date 2016-07-08
Paper # MR2016-15
Volume (vol) vol.116
Number (no) MR-125
Page pp.pp.13-18(MR),
#Pages 6
Date of Issue 2016-07-01 (MR)