Research on preparation of ultra thin multilayer film consisting of L10 ordered alloy and MgO for MRAM application

2012 Fiscal Year Final Research Report

• Project/Area Number: 23860047
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Electronic materials/Electric materials
• Research Institution: Chuo University
• Principal Investigator: OHTAKE Mitsuru 中央大学, 理工学部, 助教 (60611415)
• Project Period (FY): 2011 – 2012
• Keywords: スピンエレクトロニクス / ナノ材料 / 結晶工学 / エピタキシャル / 超格子

Research Abstract

The formation technique of magnetic tunnel junction (MTJ) consisting of ferromagnetic L1_0ordered alloy and MgO layers is investigated for future magnetoresistive random access memory (MRAM) devices. The structure is controlled in atomic level

Research Products

• [Journal Article] Preparation of FePd/MgO/FePd Tri-layer Film on SrTiO_3(001) Single-Crystal Substrate (2013)
  • Author(s): Shouhei Ouchi、 Akira Itabashi、 Mitsuru Ohtake、Masaaki Futamoto
  • Journal Title: Journal of the Magnetics Society of Japan Volume: vol.37、no.3-2 Pages: 194-197
  • Peer Reviewed
• [Journal Article] Structure Characterization of FePd, FePt, and CoPt Alloy Thin Films Epitaxially Grown on SrTiO_3(001) Single-Crystal Substrates (2013)
  • Author(s): Akira Itabashi、 Mitsuru Ohtake、 Shouhei Ouchi 、 Fumiyoshi Kirino 、 Masaaki Futamoto
  • Journal Title: Journal of the Magnetics Society of Japan Volume: vol.37、no.3-2 Pages: 202-205
  • Peer Reviewed
• [Journal Article] Preparation of L1_0ordered FePd, FePt, and CoPt thin films with flat surfaces on MgO(001) single-crystal substrates (2013)
  • Author(s): Akira Itabashi、 Mitsuru Ohtake、 Shouhei Ouchi 、 Fumiyoshi Kirino 、 Masaaki Futamoto
  • Journal Title: EPJ Web of Conferences Volume: vol.40 Pages: 07001_1-4
  • Peer Reviewed
• [Journal Article] Surface Roughness Reduction in L1_0 Ordered FePd Alloy Thin Films Formed on MgO Single-CrystalSubstrates with Different Orientations (2012)
  • Author(s): Akira Itabashi、 Mitsuru Ohtake、 Shouhei Ouchi 、 Fumiyoshi Kirino 、 Masaaki Futamoto
  • Journal Title: IEEE Transactions on Magnetics Volume: vol.48、 no.11 Pages: 3203-3206
  • Peer Reviewed
• [Journal Article] Structure and Magnetic Properties of CoPt, CoPd, FePt, and FePd Alloy Thin Films Formed on MgO(111) Substrates (2012)
  • Author(s): Mitsuru Ohtake 、 Shouhei Ouchi 、Fumiyoshi Kirino 、 Masaaki Futamoto
  • Journal Title: IEEE Transactions on Magnetics Volume: vol.48、 no.11 Pages: 3595-3598
  • Peer Reviewed
• [Journal Article] L1_0 ordered phase formation in FePt, FePd, CoPt, and CoPd alloy thin films epitaxially grown on MgO(001) single-crystal substrates (2012)
  • Author(s): Mitsuru Ohtake 、 Shouhei Ouchi 、Fumiyoshi Kirino、 Masaaki Futamoto
  • Journal Title: Journal of Applied Physics Volume: vol.111、 no.7 Pages: 07A708_1-3
  • Peer Reviewed
• [Journal Article] Structural and Magnetic Properties of FePd and CoPd Alloy Epitaxial Thin Films Grown on MgO Single-Crystal Substrates with Different Orientations (2011)
  • Author(s): Osamu Yabuhara、 Mitsuru Ohtake、 Kosuke Tobari、Tsutomu Nishiyama、Fumiyoshi Kirino、Masaaki Futamoto
  • Journal Title: Thin Solid Films Volume: vol.519、no.23 Pages: 8359-8362
  • Peer Reviewed
• [Journal Article] Structure and magnetic properties of FePd-alloy epitaxial thin films grown on MgO single-crystal substrates with different orientations (2011)
  • Author(s): Mitsuru Ohtake、 Osamu Yabuhara、 Kosuke Tobari 、 Fumiyoshi Kirino 、 Masaaki Futamoto
  • Journal Title: Journal of Applied Physics Volume: vol.109、 no.7 Pages: 07B757_1-3
  • Peer Reviewed
• [Presentation] L1_0 ordered FePd, FePt, and CoPt films with flat surfaces prepared on MgO(110) and MgO(111) substrates (2013)
  • Author(s): Mitsuru Ohtake 、 Akira Itabashi 、Fumiyoshi Kirino、 Masaaki Futamoto
  • Organizer: The 57th Magnetism and Magnetic Materials Conference/The 2013 IEEE International Magnetics Conference (12th Joint MMM/Intermag Conference)
  • Place of Presentation: アメリカ合衆国・イリノイ州・シカゴ
  • Year and Date: 2013-01-16
• [Presentation] エピタキシャル高 Ku磁性合金薄膜の形成と構造解析 (2012)
  • Author(s): 大竹充、二本正昭
  • Organizer: 磁気記録・情報ストレージ研究会
  • Place of Presentation: 愛媛大学・城北キャンパス
  • Year and Date: 2012-12-14
• [Presentation] Structure and magnetic properties of CoPt, CoPd, FePt, and FePd alloy thin films formed on MgO(111) substrates (2012)
  • Author(s): Mitsuru Ohtake 、 Shouhei Ouchi 、Fumiyoshi Kirino 、 Masaaki Futamoto
  • Organizer: The 2012 IEEE International Magnetics Conference (INTERMAG 2012)
  • Place of Presentation: カナダ・バンクーバー
  • Year and Date: 2012-05-10
• [Presentation] MgO 単結晶基板上における FePt, FePd,CoPt,および CoPd 合金薄膜のエピタキシャル成長 (2011)
  • Author(s): 大竹充、大内翔平、桐野文良、二本正昭
  • Organizer: 磁気記録・情報ストレージ研究会
  • Place of Presentation: 愛媛大学・城北キャンパス
  • Year and Date: 2011-12-15
• [Presentation] L10ordered phase formation in FePt, FePd, CoPt, and CoPd alloy thin films epitaxially grown on MgO(001) single-crystal substrates (2011)
  • Author(s): Mitsuru Ohtake 、 Shouhei Ouchi 、Fumiyoshi Kirino、 Masaaki Futamoto
  • Organizer: 56th Annual Conference of Magnetism and Magnetic Materials (MMM 2011)
  • Place of Presentation: アメリカ合衆国・アリゾナ州・スコッツデール
  • Year and Date: 2011-11-01
• [Remarks]
  • URL: http://www.elect.chuo-u.ac.jp/futamoto/ohtake/achievements.pdf