Self organized 3D nano fabrication and multi-ferroic devices

2008 Fiscal Year Self-evaluation Report

• Project/Area Number: 18063014
• Research Category: Grant-in-Aid for Scientific Research on Priority Areas
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: The University of Tokyo (2007-2009); Osaka University (2006)
• Principal Investigator: 田畑 仁 The University of Tokyo, 大学院・工学系研究科, 教授 (00263319)
• Project Period (FY): 2006 – 2009
• Keywords: マルチフェロ / 自己整合 / メモリデバイス / ナノロッド

Research Abstract

自己組織化プロセスを利用した、新しいナノ構造形成技術の開発とナノデバイスの構築を目指し研究を推進。また、省エネルギー、高集積化、高速演算を可能にする次世代エレクトロニクスの有望な基幹材料として、電気双極子秩序(強誘電性)とスピン秩序(強磁性)を単一相の中で融合したマルチフェロイック物質の創製を行うとともに、シリコン系材料との融合による高次機能調和デバイスの開発を実施。

Research Products

• [Journal Article] A noise-driven attractor switching device (2008)
  • Author(s): N. Asakawa, Y. Hotta, T. Kanki, T. Kawai, H. Tabta
  • Journal Title: Phys.Rev.E 11321 Pages: 6
• [Journal Article] Cooperative Dynamics of an Artificial Stochastic Resonant System (2008)
  • Author(s): Y. Hotta, T. Kanki, N. Asakawa, H. Tabata, and T. Kawai
  • Journal Title: Applied Physics Express 1 Pages: 088002
• [Journal Article] Systematic examination of excitonic-related transitions in Zn1-xCoxO: An evidence for II-VI wide-gap semiconductors (2008)
  • Author(s): Z.Y. Xiao, H. Matsui, N. Hasuike, H. Harima and H. Tabata
  • Journal Title: J. Appl. Phys. 103 Pages: 043504
• [Journal Article] Room-temperature-photoinduced magnetism and spin-electronic functions of spinel ferrite with a spin-cluster structure (2008)
  • Author(s): T. Kanki, Y. Hotta, N. Asakawa, M. Seki, H. Tabata and T. Kawai
  • Journal Title: Appl. Phys. Lett. 92 Pages: 1852505
• [Journal Article] Self-organized ZnO nano-rod with photo oxidative cell membrane perforation enables large scale non-disruptive cell manipulation (2008)
  • Author(s): T.Saito, M. Seki, H. Tabata
  • Journal Title: Analytical & Bioanalytical Chemistry Pages: DOI 10.1007/s00216-008-2226-2
• [Journal Article] Photoemission and x-ray absorption studies of valence states in (Ni, Zn, Fe, Ti)3O4 thin films exhibiting photoinduced magnetization (2008)
  • Author(s): M. Kobayashi, Y. Ooki, M. Takizawa, G. S. Song, A. Fujimori, Y. Takeda, K. Terai, T. Okane, S.-I. Fujimori, Y. Saitoh, H. Yamagami, M. Seki, T. Kawai, and H. Tabata
  • Journal Title: Appl. Phys. Lett. 92 Pages: 082502
• [Presentation] Experimental observation of bulk band dispersions in the oxide semiconductor ZnO using soft x-ray angle-resolved photoemission spectroscopy (2008)
  • Author(s): M. Kobayashi, T. Ohkochi, G. S. Song, T. Kataoka, Y. Sakamoto, A. Fujimori, Y. Takeda, T. Okane, Y. Saitoh, H. Yamagami, H. Yamahara H. Saeki, T. Kawai and H. Tabata
  • Organizer: International Conference on the Physics of Semiconductors, ICPS 2008
  • Place of Presentation: Rio de Janeiro,Brazil
  • Year and Date: 20080727-0801
• [Presentation] Electronic band dispersion of the oxide semiconductor ZnO revealed by soft x-ray angle-resolved photoemission spectroscopy (2008)
  • Author(s): M. Kobayashi, T. Ohkochi, G. S. Song, T. Kataoka, Y. Sakamoto, A. Fujimori, Y. Takeda, T. Okane, Y. Saitoh, H. Yamagami, H. Yamahara, H. Saeki, T. Kawai, H. Tabata
  • Organizer: The 29th International Conference on the Physics of Semiconductors, ICPS2008
  • Place of Presentation: Rio de Janeiro, Brazil
  • Year and Date: 20080727-0801
• [Presentation] Spin and dipole ordering in strained garnet ferrite R3Fe5O12 thin films above room temperature (2008)
  • Author(s): H. Tabata, K. Tsuruta, T. Koide, H. Yamahara, M. Seki
  • Organizer: International Symposium on Integrated Ferroelectrics ISIF2008(Invited)
  • Place of Presentation: Singapore
  • Year and Date: 20080709-12
• [Presentation] Raman scattering study of multiferroic Ho3Fe5O12 thin film (2008)
  • Author(s): H Fukumura, N Tonari, N Hasuike, H Harima, K Kisoda, T Koide, M Seki, and H Tabata
  • Organizer: International Conference on Quantum Simulators and Design 2008 (QSD2008)
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 20080531-0603
• [Presentation] Magnetic and electric properties of photo-induced magnet (Al,Ru,Fe)3O4 spinel ferrite thin films (2008)
  • Author(s): T. Kanki, Y. Hotta, N. Asakawa, M. Seki, E. Ikenaga, H. Tabata, H. Tanaka, K.Kobayashi, and T. Kawai
  • Organizer: IEEE Nanotechnology Materials and Devices Conference 2008-NMDC2008
  • Place of Presentation: Kyoto
  • Year and Date: 20080000
• [Remarks] 「ナノフォトニクス・・・材料、生命、情報の接点」, 田畑 仁, ナノフォトニクス総合的展開シンポジウム2008, 東大 武田ホール, 東京, Jul.2, 2008(依頼講演)
• [Remarks] ボトムアップナノテクノロジーによる新規機能性材料開発とエレクトクニスへの展開, 田畑 仁, 文科省関連研究会, 関東学院大学金沢八景キャンパス, Jun.05, 2008
• [Remarks] マルティフェロイク材料の基礎と応用,田畑仁, 第25 回 強誘電体応用会議(FMA-25)特別チュートリアル講演, 京都,May.28-30, 2008
• [Remarks] バイオスピントロニクスの研究動向, 田畑仁, 応用物理学会 スピントロニクス研究会, 東京大学(本郷キャンパス), 東京, Jul.3, 2008
• [Patent(Industrial Property Rights)] 酸化物人工超格子薄膜とその製造方法 (2008)
  • Inventor(s): 田畑仁、川合知二
  • Industrial Property Number: 特許第4219021号
  • Acquisition Date: 20081100
• [Patent(Industrial Property Rights)] 光誘起磁化制御方法 (2008)
  • Inventor(s): 川合 知二、田畑 仁、村岡 祐治
  • Industrial Property Number: 特許第4139882号
  • Acquisition Date: 20080600