Fabrication of planar magnetic nanostructures and control of their magnetization

2009 Fiscal Year Final Research Report

• Project/Area Number: 19360140
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Electronic materials/Electric materials
• Research Institution: Yokohama National University
• Principal Investigator: TAKEMURA Yasushi Yokohama National University, 大学院・工学研究院, 教授 (30251763)
• Project Period (FY): 2007 – 2009
• Keywords: 磁性ナノ構造 / 磁性体 / 磁化反転 / 原子間力顕微鏡(AFM)

Research Abstract

プレーナ型磁性ナノ構造の作製方法の確立、ナノ磁性構造における磁気特性の制御方法の確立、及びプレーナ型磁性ナノ構造における通電電流による磁化反転制御の検証を実施した。その結果、磁性ナノ構造の作製に、原子間力顕微鏡(AFM)を用いたナノリソグラフィが有効であることを明らかにした。また、作製した磁性ナノ構造において、通電電流による磁化反転や狭窄化による磁気抵抗効果の観測に成功した。

Research Products

• [Journal Article] Scanning probe microscopes local oxidation for fabricating magnetic nanostructures (2010)
  • Author(s): Yasushi Takemura
  • Journal Title: Journal of Nanoscience and Nanotechnology Vol.10,No.8 Pages: 4528-4532
  • Peer Reviewed
• [Journal Article] Magnetization Switching of Magnetic Submicron Structure Fabricated by Atomic Force Microscope (2008)
  • Author(s): Noriyuki Ishii, Tatsuhiko Yokoyama, Hiroki Shibata, Tsutomu Yamada, Jun-ichi Shirakashi, Yasushi Takemura
  • Journal Title: IEEJ Transactions on Electrical and Electronic Engineering Vol.3,Issue4 Pages: 386-389
  • Peer Reviewed
• [Journal Article] AFM nano-oxidation of NiFe thin films capped with Al-oxide layers for planar-type tunnel junction (2008)
  • Author(s): Shunsuke Hasegawa, Shogo Yamada, Tsutomu Yamada, Jun-ichi Shirakashi, Yasushi Takemura
  • Journal Title: IEEJ Transactions on Electrical and Electronic Engineering Vol.3,Issue4 Pages: 382-385
  • Peer Reviewed
• [Journal Article] Measurement of Reaction Current during Atomic Force Microscope Local Oxidation of Conductive Surfaces Capped with Insulating Layers (2008)
  • Author(s): Yasuyuki Shimada, Tsutomu Yamada, Jun-ichi Shirakashi, Yasushi Takemura
  • Journal Title: Jpn. J. Appl. Phys. Vol.47,No.1 Pages: 768-770
  • Peer Reviewed
• [Presentation] Constriction of ferromagnetic patterned thin film by AFM scratch lithography (2010)
  • Author(s): Kyungmin Jang, Yoshifumi Ishibashi, Daisuke Iwata, Hidenori Suganuma, Tsutomu Yamada, Yasushi Takemura
  • Organizer: The 3rd IEEE International NanoElectronics Conference (INEC) 2010
  • Place of Presentation: Hong Kong
  • Year and Date: 2010-01-05
• [Presentation] AFMリソグラフィによるナノコンタクトの作製 (2009)
  • Author(s): 菅沼秀教、チャンキョンミン、岩田大輔、山田努、竹村泰司
  • Organizer: 2009年電子情報通信学会ソサイエティ大会
  • Place of Presentation: 新潟
  • Year and Date: 2009-09-16
• [Presentation] AFMスクラッチ・リソグラフィによる磁性デバイスの作製 (2009)
  • Author(s): 岩田大輔、チャン・キョンミン、菅沼秀教、山田努、竹村泰司
  • Organizer: 電気学会マグネティックス研究会
  • Place of Presentation: 宇都宮
  • Year and Date: 2009-08-04
• [Presentation] Constriction of Ferromagnetic Patterned Thin Film by Scratch Process Using Atomic Force Microscope (2009)
  • Author(s): Yasushi Takemura, Jun-ich Shirakashi
  • Organizer: Seventeenth Annual International Conference On Composites/Nano Engineering (ICCE-17)
  • Place of Presentation: Honolulu, USA
  • Year and Date: 2009-07-29
• [Presentation] AFM探針スクラッチナノ加工による強磁性パターン薄膜の狭窄化 (2009)
  • Author(s): 菅沼秀教、チャンキョンミン、山田努、竹村泰司
  • Organizer: 電子情報通信学会電子部品・材料研究会(CPM)材料・デバイスサマーミーティング
  • Place of Presentation: 東京
  • Year and Date: 2009-06-27
• [Presentation] Constriction of Ferromagnetic Patterned Thin Film by Using AFM Nano Scratch Process (2008)
  • Author(s): Kyungmin Jang, Kazuhiro Takahashi, Tsutomu Yamada, Jun-ich Shirakashi, Yasushi Takemura
  • Organizer: Asian Magnetic Conference (AMC) 2008
  • Place of Presentation: Busan, Korea
  • Year and Date: 2008-12-10
• [Presentation] Dependence on Scan-speed of Cantilever in Measurement of Reaction Current of AFM Local Oxidation (2008)
  • Author(s): Daisuke Iwata, Yasuyuki Shimada, Tsutomu Yamada, Jun-ichi Shirakashi, Yasushi Takemura
  • Organizer: 1st International Workshop on Tip-Based Nanofabrication
  • Place of Presentation: Taipei, Taiwan
  • Year and Date: 2008-10-21
• [Presentation] Nano-oxidation of NiFe Thin Films with Al-Oxide Capped Layers by Atomic Force Microscope (2008)
  • Author(s): Hidenori Suganuma, Shunsuke Hasegawa, Tsutomu Yamada, Jun-ichi Shirakashi, Yasushi Takemura
  • Organizer: 1st International Workshop on Tip-Based Nanofabrication
  • Place of Presentation: Taipei, Taiwan
  • Year and Date: 2008-10-21
• [Presentation] SPM Local Oxidation for Fabricating Magnetic Nanostructures (2008)
  • Author(s): Yasushi Takemura
  • Organizer: 1st International Workshop on Tip-Based Nanofabrication
  • Place of Presentation: Taipei, Taiwan
  • Year and Date: 2008-10-20
• [Presentation] SPMスクラッチナノ加工による強磁性細線の狭窄化 (2008)
  • Author(s): チャンキョンミン、高橋和大、山田努、白樫淳一、竹村泰司
  • Organizer: 平成20年電気学会基礎・材料・共通部門大会
  • Place of Presentation: 千葉
  • Year and Date: 2008-08-21
• [Presentation] SPM局所酸化における反応電流の探針-試料間距離依存 (2008)
  • Author(s): 菅沼秀教、進藤僚平、山田努、白樫淳一、竹村泰司
  • Organizer: 電流の探針-試料間距離依存、平成20年電気学会基礎・材料・共通部門大会
  • Place of Presentation: 千葉
  • Year and Date: 2008-08-21
• [Presentation] SPMリソグラフィにより作製した磁性ナノ構造の評価 (2008)
  • Author(s): 竹村泰司、白樫淳一
  • Organizer: 電気学会マグネティックス研究会
  • Place of Presentation: 仙台
  • Year and Date: 2008-08-04
• [Presentation] Measurement of Reaction Current during Local Oxidation of Si and NiFe using Atomic Force Microscope (2008)
  • Author(s): Y. Shimada, D. Iwata, T. Yamada, J. Shirakashi, Y. Takemura
  • Organizer: The 2008 International Conference on Nanoscience + Technology (ICN+T2008)
  • Place of Presentation: Denver, USA
  • Year and Date: 2008-07-22
• [Presentation] Magnetic and electrical properties of magnetic nano-devices fabricated by atomic force microscope (2008)
  • Author(s): Yasushi Takemura, Jun-ichi Shirakashi
  • Organizer: Moscow International Symposium on Magnetism (MISM2008)
  • Place of Presentation: Moscow, Russia
  • Year and Date: 2008-06-21
• [Presentation] AFM局所酸化における反応電流のカンチレバーたわみ量依存 (2008)
  • Author(s): 進藤僚平、嶌田泰之、山田努、白樫淳一、竹村泰司
  • Organizer: 2008年春季第54回応用物理学会関連連合講演会
  • Place of Presentation: 東京
  • Year and Date: 2008-03-27
• [Presentation] Magnetization Switching of Magnetic Submicron Structure Fabricated by Atomic Force Microscope (2008)
  • Author(s): Noriyuki Ishii, Tatsuhiko Yokoyama, Hiroki Shibata, Tsutomu Yamada, Jun-ichi Shirakashi, Yasushi Takemura
  • Organizer: The International Workshop on Nano-structured Materials and Magnetics (NMM2008)
  • Place of Presentation: Abstract Book, Okinawa
  • Year and Date: 2008-02-11
• [Presentation] Dependence of cantilever deflection in AFM nano-oxidation (2008)
  • Author(s): Ryo-hei Shindo, Yasuyuki Shimada, Tsutomu Yamada, Jun-ichi Shirakashi, Yasushi Takemura
  • Organizer: The International Workshop on Nano-structured Materials and Magnetics (NMM2008)
  • Place of Presentation: Abstract Book, Okinawa
  • Year and Date: 2008-02-11
• [Presentation] AFM nano-oxidation of NiFe thin films capped with Al-oxide layers for planar-type tunnel junction (2008)
  • Author(s): Shunsuke Hasegawa, Shogo Yamada, Tsutomu Yamada, Jun-ichi Shirakashi, Yasushi Takemura
  • Organizer: he International Workshop on Nano-structured Materials and Magnetics (NMM2008)
  • Place of Presentation: Abstract Book, Okinawa
  • Year and Date: 2008-02-11
• [Presentation] Control of reaction current during AFM nano-oxidation of ferromagnetic thin films capped with insulating layers (2007)
  • Author(s): Yasuyuki Shimada, Shunsuke Hasegawa Tsutomu Yamada, Jun-ichi Shirakashi, Yasushi Takemura
  • Organizer: The 52nd Magnetism and Magnetic Materials Conference
  • Place of Presentation: Tampa, FL, USA
  • Year and Date: 2007-11-03
• [Presentation] Al酸化層をコートしたプレーナ型強磁性トンネル接合の作製 (2007)
  • Author(s): 長谷川俊祐、山田彰悟、石橋禎史、山田努、白樫淳一、竹村泰司
  • Organizer: 第31回日本応用磁気学会(MSJ)学術講演会
  • Place of Presentation: 東京
  • Year and Date: 2007-09-11