Preparation of spin-valves based on low-molecular weight organic semiconductors

• Project/Area Number: 20360010
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Applied materials science/Crystal engineering
• Research Institution: Osaka University
• Principal Investigator: TADA Hirokazu 大阪大学, 大学院・基礎工学研究科, 教授 (40216974)
• Co-Investigator(Kenkyū-buntansha): YAMADA Ryo 大阪大学, 大学院・基礎工学研究科, 准教授 (20343741)
• Project Period (FY): 2008 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000); Fiscal Year 2010: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2009: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000); Fiscal Year 2008: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
• Keywords: 有機半導体 / スピントロニクス / 有機エレクトロニクス / 有機スピントロニクス / スピンバルブ / スピン注入 / 界面

Research Abstract

Magnetoresitance of sandwich structures composed of ferromagnetic metal/ organic semiconductor/ ferromagnetic metal. It was found that interface between organic layers and electrodes governed the magnetoresitance, and the sign of megnetoresitance was affected by the p/ n conduction type and film thickness of organic layers.

Research Products

• [Journal Article] Magnetoresistance of single molecular junctions measured by a mechanically controllable break junction method (2011)
  • Author(s): R. Yamada, M. Noguchi and H. Tada
  • Journal Title: Appl. Phys. Lett Volume: 98 Pages: 53110-3
• [Journal Article] Side-chain effects on electronic structure and molecular stacking arrangement of PCBM spin-coated films (2011)
  • Author(s): P. Bazylewski, K. Kim, J. Forrest, H. Tada, D. Choi and G. Chang
  • Journal Title: Chem. Phys. Lett Volume: 508 Pages: 90-94
• [Journal Article] Air-Stable n-Type Organic Field-Effect Transistors Based on Solution-Processable, Electronegative Oligomers Containing Dicyanomethylene-Substituted Cyclopenta[ b] thiophene (2011)
  • Author(s): Y. Ie, K. Nishida, M. Karakawa, H. Tada, A. Asano, A. Saeki, S. Seki and Y. Aso
  • Journal Title: Chemistry-A Eur. J Volume: 17 Pages: 4750-4758
• [Journal Article] 有機スピントロニクスにおける界面制御 (2011)
  • Author(s): 夛田博一
  • Journal Title: 表面科学 Volume: 32(3) Pages: 152-157
  • NAID: 10027904905
• [Journal Article] Side-chain effects on electronic structure and molecular stacking arrangement of PCBM spin-coated films (2011)
  • Author(s): P.F.Bazylewski, Hirokazu Tada, Gap Soo Chang, et al.
  • Journal Title: Chem.Phys.Lett. Volume: 508 Pages: 90-94
  • Peer Reviewed
• [Journal Article] Scanning tunneling spectroscopy of fluorinated phthalocyanine molecules on magnetic metal surfaces (2011)
  • Author(s): Masaki Takada, Hirokazu Tada
  • Journal Title: Chem.Phys.Lett. Volume: 514 Pages: 94-97
  • Peer Reviewed
• [Journal Article] Mechanism of electrical conduction through single oligothiophene molecules (2010)
  • Author(s): L. S. Kei, S. Tanaka, R. Yamada and H. Tada
  • Journal Title: Func. Mater. Lett Volume: 3 Pages: 245-248
• [Journal Article] All-organic coaxial nanocables with interfacial charge-transfer layers : electrical conductivity and light-emitting-transistor behavior (2010)
  • Author(s): J. H. Kim, A. Watanabe, J. W. Chung, Y. Jung, B. K. An, H. Tada
  • Journal Title: S. Y. Park, J. Mater. Chem Volume: 20 Pages: 1062-1064
• [Journal Article] Air-stable n-type organic field-effect transistors based on carbonyl-bridged bithiazole derivatives (2010)
  • Author(s): Y. Ie, M. Nitani, M. Kawahara, H. Tada and Y. Aso
  • Journal Title: Adv. Func. Mater Volume: 20 Pages: 907-913
• [Journal Article] Air-Stable n-Type Organic Field-Effect Transistors Based on Carbonyl-Bridged Bithiazole Derivatives (2010)
  • Author(s): Yutaka Ie, Hirokazu Tada, Yoshio Aso, et al.
  • Journal Title: Adv.Func.Mater. Volume: 20 Pages: 907-913
  • Peer Reviewed
• [Journal Article] Electronic structure of hydrogen-terminated silicon surfaces [H-Si(111)] studied by two-photon photoemission (2010)
  • Author(s): Tsuneyuki Nakamura, Hirokazu Tada, Yoshio Aso, et al.
  • Journal Title: Appl.Phys.A, Mater.Sci.Process. Volume: 98 Pages: 735-743
  • Peer Reviewed
• [Journal Article] Solution-processed n-type organic field-effect transistors based on electronegative oligothiophenes having fully oxo-substituted terthiophenes (2010)
  • Author(s): Yutaka Ie, Hirokazu Tada, Yoshio Aso, et al.
  • Journal Title: Organic Electronics Volume: 11 Pages: 1740-1745
  • Peer Reviewed
• [Journal Article] Patterning of organic semiconductors on Silicon oxide using an atomic force microscope with an alternating-current electric field (2009)
  • Author(s): R. Kimura, R. Yamada and H. Tada
  • Journal Title: Appl. Phys. Express Volume: 2 Pages: 115001-3
  • NAID: 10027012139
• [Journal Article] Electrical resistance of long oligothiophene molecules (2009)
  • Author(s): R. Yamada, H. Kumazawa, S. Tanaka, and H. Tada
  • Journal Title: Appl. Phys. Express Volume: 2 Pages: 25002-3
  • NAID: 10025084744
• [Journal Article] 分子を用いたスピントロニクス素子 (2009)
  • Author(s): 夛田博一
  • Journal Title: 機能材料 Volume: 29(5) Pages: 16-20
• [Journal Article] Patterning of Organic Semiconductors on Silicon Oxide Using an Atomic Force Microscope with an Alternating-Current Electric Field (2009)
  • Author(s): R.Kimura, et al.
  • Journal Title: Appl.Phys.Express 2 Pages: 11501-3
  • Peer Reviewed
• [Journal Article] Electronegative Oligothiophenes Having Difluorodioxocyclopentene-annel ated Thiophenesas Solution-processable n-Type OFET Materials (2009)
  • Author(s): Y.Ie, et al.
  • Journal Title: Chem.Lett. 38 Pages: 460-461
  • Peer Reviewed
• [Journal Article] Characterization of alkylmonolayer covalently bonded to Si (111) and soft-landing of vanadium-benzene sandwich clusters onto the alkylmonolayer substrate (2009)
  • Author(s): T.Matsumoto, et al.
  • Journal Title: Eur.Phys.J.D 52 Pages: 99-102
  • Peer Reviewed
• [Journal Article] 分子を用いたスピントロニクス素子 (2009)
  • Author(s): 夛田博一
  • Journal Title: 機能材料 29 Pages: 16-20
  • Peer Reviewed
• [Journal Article] Planar-type spin-valves based on low-molecular-weight organic materials with La_<0. 67> Sr_<0. 33> Mn0_3 electrodes (2008)
  • Author(s): T. Ikegami, I. Kawayama, M. Tonouchi, S. Nakao, Y. Yamashita and H. Tada
  • Journal Title: Appl. Phys. Lett Volume: 92 Pages: 153304-3
• [Journal Article] Electrical conductance of oligothiophene molecular wires (2008)
  • Author(s): R. Yamada, H. Kumazawa, T. Noutoshi, S. Tanaka and H. Tada
  • Journal Title: Nano Lett Volume: 8 Pages: 1237-1240
• [Journal Article] Planar-type Spin-valves Based on Low-molecular-weight Organic Materials with La0.67Sr0.33MnO3 Electrodes (2008)
  • Author(s): T. Ikegami, et al.
  • Journal Title: Applied Physics Letters 92 Pages: 153304-153304
  • Peer Reviewed
• [Presentation] 分子性導体を用いた非局所スピンバルブの研究 (2011)
  • Author(s): 川椙義高、荒正人、夛田博一
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学
  • Year and Date: 2011-09-22
• [Presentation] 導電性低分子材料を用いた有機スピンバルブの研究 (2011)
  • Author(s): 川椙義高、荒正人、夛田博一
  • Organizer: 第72回応用物理学会学術講演会
  • Place of Presentation: 山形大学
  • Year and Date: 2011-09-01
• [Presentation] Photo-Induced Magnetoresistance in Single-Crystalline Pentacene Field-Effect Transistors (2011)
  • Author(s): Pham Song Toan, 川椙義高、夛田博一
  • Organizer: 第72回応用物理学会学術講演会
  • Place of Presentation: 山形大学
  • Year and Date: 2011-08-31
• [Presentation] Charge accumulation at the interface of heterojunction of pentacene and perfluoro pentacene (2011)
  • Author(s): Pham Song Toan, 川椙義高、夛田博一
  • Organizer: 第58回応用物理学関係連合学術講演会
  • Place of Presentation: 神奈川工科大学
  • Year and Date: 2011-03-24
• [Presentation] La0.67Sr0.33MnO3(110)面を電極とする有機スピンバルブの作製 (2011)
  • Author(s): 宇治野智大,竹田洋輔,川椙義高、夛田博一
  • Organizer: 第58回応用物理学関係連合学術講演会
  • Place of Presentation: 神奈川工科大学
  • Year and Date: 2011-03-24
• [Presentation] Spinvalves Based on Low Molecular Weight Organic Semiconductors (2011)
  • Author(s): Y.Takeda, T.Ujino, R.Sasaki, Y.Kawasugi, H.Tada
  • Organizer: 6^<th> International Conference on Molecular Electronics and Bio-Electronics
  • Place of Presentation: 仙台国際会議場
  • Year and Date: 2011-03-16
• [Presentation] 分子性導体を用いた非局所スピンバルブの研究 (2011)
  • Author(s): 川椙義高, 荒正人, 多田博一
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山
• [Presentation] 導電性低分子材料を用いた有機スピンバルブの研究 (2011)
  • Author(s): 川椙義高, 荒正人, 多田博一
  • Organizer: 第72回応用物理学会学術講演会
  • Place of Presentation: 山形
• [Presentation] Spin Dependent Carrier Transport in Layered Sandwich Structures of Co/ organic materials/ LSMO with p-and n-type Molecules (2011)
  • Author(s): Yosuke Takeda, Tomohiro Ujino, Ryota Sasaki, Yoshitaka Kawasugi and Hirokazu Tada
  • Organizer: Electronics and Bioelectronics
  • Place of Presentation: Sendai
• [Presentation] 分子ナノ技術の現状と戦略 (2010)
  • Author(s): 夛田博一
  • Organizer: 第18回エレクトロニクス基礎研究所公開シンポジウム「有機エレクトロニクス研究開発の最前線-分子技術からデバイス応用まで-」
  • Place of Presentation: 大阪電気通信大学
  • Year and Date: 2010-12-17
• [Presentation] Spin injection and transport in organic semiconductors (2010)
  • Author(s): Hirokazu Tada
  • Organizer: 9th International Conference on Nano-Molecular Electronics
  • Place of Presentation: 神戸コンベンションセンター(招待講演)
  • Year and Date: 2010-12-15
• [Presentation] Preparation of organic Spinvalves (2010)
  • Author(s): Hirokazu Tada
  • Organizer: The 5th International Workshop on Advanced Materials and Nanotechnology
  • Place of Presentation: Hanoi, Vietnam(招待講演)
  • Year and Date: 2010-11-12
• [Presentation] 分子技術に基づく新機能デバイス創成分子-スピントロニクス- (2010)
  • Author(s): 夛田博一
  • Organizer: 第71回応用物理学会学術講演会
  • Place of Presentation: 長崎大学
  • Year and Date: 2010-09-16
• [Presentation] 有機スピンバルブ素子における強磁性金属/有機材料の界面制御 (2010)
  • Author(s): 竹田洋輔、夛田博一
  • Organizer: 第71回応用物理学会学術講演会
  • Place of Presentation: 長崎大学
  • Year and Date: 2010-09-16
• [Presentation] Preparation of organic Spinvalves (2010)
  • Author(s): Hirokazu Tada
  • Organizer: 3rd International Conference on Functional Material & Devices 2010
  • Place of Presentation: TERENGGANU, MALAYSIA(招待講演)
  • Year and Date: 2010-06-15
• [Presentation] Spinvalves Based on Low Molecular Weight Organic Semiconductors (2010)
  • Author(s): Hirokazu Tada
  • Organizer: International Conference on Core Research and Engineering Science of Advanced Materials
  • Place of Presentation: 大阪大学
  • Year and Date: 2010-06-03
• [Presentation] 有機スピンバルブ素子における強磁性金属/有機材料の界面制御 (2010)
  • Author(s): 竹田洋輔、佐々木亮太、夛田博一
  • Organizer: 第71回応用物理学会学術講演会
  • Place of Presentation: 長崎
• [Presentation] 強磁性金属/有機/強磁性金属積層型素子における界面制御 (2010)
  • Author(s): 竹田洋輔、佐々木亮太、夛田博一
  • Organizer: 第57回応用物理学関係連合講演会
  • Place of Presentation: 神奈川
• [Presentation] Spin injection and transport in organic semiconductors (2010)
  • Author(s): Hirokazu Tada
  • Organizer: 9th International Conference on Nano-Molecular Electronics
  • Place of Presentation: Kobe, Japan
• [Presentation] Preparation of Organic Spinvalves (2010)
  • Author(s): Hirokazu Tada
  • Organizer: The 5th International Workshop on Advanced Materials and Nanotechnology(IWAMSN2010)
  • Place of Presentation: Hanoi, Vietnum
• [Presentation] Spin valve characteristics in nickel/ single molecule/ nickel junctions (2010)
  • Author(s): Motoki Noguchi, Ryo Yamada, Hirokazu Tada
  • Organizer: The 6th International Workshop on Nano-scale Spectroscopy and Nanotechnology
  • Place of Presentation: Kobe, Japan
• [Presentation] Modification of the interface between ferromagnetic metal electrodes and organic films in layered spin-valve devices (2010)
  • Author(s): Yosuke Takeda and Hirokazu Tada
  • Organizer: Spinos III
  • Place of Presentation: Amsterdam, Holland
• [Presentation] Modification of Interface Structures between Ferromagnetic Metals and Organic Films in Layered Spin-valve Devices (2010)
  • Author(s): Yosuke Takeda and Hirokazu Tada
  • Organizer: SSSJ-A3 Foresight Joint Symposium on Nanomaterials and Nanostructures
  • Place of Presentation: Tokyo, Japan
• [Presentation] Preparation of Organic Spinvalves (2010)
  • Author(s): Hirokazu Tada
  • Organizer: 3rd INTERNATIONAL CONFERENCE ON FUNCTIONAL MATERIAL AND DEVICES 2010(ICFMD)
  • Place of Presentation: Terengganu, Malaysia
• [Presentation] Spinvalves Based on Low Molecular Weight Organic Semiconductors (2010)
  • Author(s): Hirokazu Tada
  • Organizer: International Conference on Core Research and Engineering Science of Advanced Materials
  • Place of Presentation: Osaka, Japan
• [Presentation] Modification of Ferromagnetic Metal/Organic Interfaces in Layered Organic Spin-valve Devices (2009)
  • Author(s): Hirokazu Tada
  • Organizer: Materials Research Society Fall Meeting 2009
  • Place of Presentation: Boston (USA)
  • Year and Date: 2009-11-30
• [Presentation] Spin Injection and Transport in Organic Semiconductors (2009)
  • Author(s): Hirokazu Tada
  • Organizer: 10^<th> International Conference on Frontoers of Poly mers and Advanced Materials
  • Place of Presentation: Santiago de Chile
  • Year and Date: 2009-10-02
• [Presentation] Spin-injection and Transport in Organic Materials (2009)
  • Author(s): Hirokazu Tada
  • Organizer: The 8th International Symposium on Crystalline Organic Metals, Superconductors and Ferromagnets (IACOM2009)
  • Place of Presentation: ニセコ
  • Year and Date: 2009-09-14
• [Presentation] Planar-type Spin-valves Based on Organic Single Crystals with Ferroma gnetic Electrodes (2009)
  • Author(s): Hirokazu Tada
  • Organizer: Materials Research Society Spring Meeting 2009
  • Place of Presentation: SanFrancisco (USA)
  • Year and Date: 2009-04-15
• [Presentation] Preparation of layered-type organic spin-valve devices with La0.7Sr0.3MnO3 (2009)
  • Author(s): T. Ikegami, et al.
  • Organizer: 5th International conference on Molecular Electronics and Bioelectronics
  • Place of Presentation: 宮崎
  • Year and Date: 2009-03-16
• [Presentation] Preparation of layered-type organic spin-valve devices with La0. 7Sr0. 3Mn03 (2009)
  • Author(s): T. Ikegami, I. Kawayama, M. Tonouchi, H. Tada
  • Organizer: Fifth International conference on Molecular Electronics and Bioelectronics
  • Place of Presentation: Miyazaki
• [Presentation] Magnetoresistance of layered and lateral sandwich structures composed of ferromagnetic metals and organic semiconductors (2008)
  • Author(s): 多田博一
  • Organizer: 日本磁気学会・スピントロニクス研究会
  • Place of Presentation: 京都
  • Year and Date: 2008-12-08
• [Presentation] Magneto-resistance of Sandwich Structures Composed of Ferromagnetic Metals and Organic Semiconductors (2008)
  • Author(s): H. Tada, et al.
  • Organizer: MRS Fall Meeting
  • Place of Presentation: 米国、ボストン
  • Year and Date: 2008-12-02
• [Remarks]
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