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Control of spin polarization by voltage for the magneto-optical devises

Research Project

Project/Area Number 16360144
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Electronic materials/Electric materials
Research InstitutionTohoku University

Principal Investigator

DOI Masaaki  Tohoku University, Graduate School of Engineering, Associate Professor, 大学院工学研究科, 助教授 (10237167)

Co-Investigator(Kenkyū-buntansha) SAHASHI Masashi  Tohoku University, Graduate School of Engineering, Professor, 大学院工学研究科, 教授 (20361123)
Project Period (FY) 2004 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥15,100,000 (Direct Cost: ¥15,100,000)
Fiscal Year 2006: ¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 2005: ¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 2004: ¥10,000,000 (Direct Cost: ¥10,000,000)
Keywordsspin polarization / Mossbauer effect / voltage control / ultra thin oxide layer / epitaxial / spin injection
Research Abstract

For the fabrication of the voltage controlled spin polarization multilayer, the experiment has been carried out by following step.
1.The apparatus for the fabrication and analysis of the thin film was set up.
1)The apparatus for the fabrication of oxide thin film and in-situ measurement system was set up.
2)The measurement system for the Mossbauer effect was set up.
2.The establishment of the fabrication and analysis method for the Nano-Oxide-Layer.
1)Study for the structural and magnetic properties of CoFe-NOL(Nano-Oxide-Layer).
2)Study on the fabrication of Ta_2O_5 with high dielectric constant.
3.Study for the structural and magnetic properties of MNOM (metal/native oxide multilayer).
1)Fabrication and structural analyses of MNOM
2)The design of the voltage controlled spin polarization multilayer
The estimation method of the nano-oxide layer by using the conductive atom force microscope was established. From the analysis of magnetization process under magnetic cooling effect and Mossbauer spectrum, the magnetic structure of ultra thin oxide of CoFe and Fe were clarified. We also succeeded in the fabrication of ultra thin Ta_2O_5 with high dielectric constant. The design of the voltage controlled spin polarization multilayer by the metal/native oxide multilayer was discussed by using ultra thin Ta_2O_5. The experiment for the spin polarization controlled by voltage should be continued.

Report

(4 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • 2004 Annual Research Report
  • Research Products

    (29 results)

All 2007 2006 2005 2004

All Journal Article (29 results)

  • [Journal Article] Confirmation of "Atom Pumping-up Mechanism" in Fe/Ta Film for the Fabrication of Ferromagnetic Nano-bridge2007

    • Author(s)
      M.Doi
    • Journal Title

      IEEE TRANSACTIONS ON MAGNETICS (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] Influence of NOL magnetism on Exchange-Bias Characteristics in Specular Spin Valve Systems with (Co-Fe)/Cr pin-NOL2007

    • Author(s)
      M.Sahashi
    • Journal Title

      IEEE TRANSACTIONS ON MAGNETICS (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] Self aligned periodic Ni nano dots embedded in nano-oxide-layer2007

    • Author(s)
      M.Doi
    • Journal Title

      Journal of Magnetism and Magnetic Materials 310・2

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Confirmation of "Atom Pumping-up Mechanism" in Fe/Ta Film for the Fabrication of Ferromagnetic Nano-bridge2007

    • Author(s)
      M.Doi
    • Journal Title

      IEEE Trans.Magn. (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Influence of NOL magnetism on Exchange-Bias Characteristics in Specular Spin Valve Systems with (Co-Fe)/Cr pin-NOL2007

    • Author(s)
      M.Sahashi
    • Journal Title

      IEEE Trans.Magn. (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Self aligned periodic Ni nano dots embedded in nano-oxide-layer2007

    • Author(s)
      M.Doi
    • Journal Title

      Journal of Magnetism and Magnetic Materials 310, No.2

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Self aligned periodic Ni nano dots embedded in nano-oxidelayer2007

    • Author(s)
      M.Doi
    • Journal Title

      Journal of Magnetism and Magnetic Materials 310・2

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Study on B2 structure epitaxial Fe/Co superlattice2006

    • Author(s)
      In Chang Chu
    • Journal Title

      Journal of Magnetism and Magnetic Materials 304・1

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] Experimental and Simulation Study to Identify Current-Confined Path in Cu-Al Space Layer for CPP-GMR Spin-Valve Applications2006

    • Author(s)
      J.Y.Sho
    • Journal Title

      IEEE TRANSACTIONS ON MAGNETICS 42・10

      Pages: 2633-2635

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] STRUCTURAL CHARACTERIZATION OF Co_<100-x>Fe_x NANO OXIDE LAYER2006

    • Author(s)
      Hiroaki Endo
    • Journal Title

      JOURNAL OF APPLIED PHYSICS 99

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Co_<100-x>Fe_x-NOLのピンアシスト効果について2006

    • Author(s)
      遠藤広明
    • Journal Title

      日本応用磁気学会誌 30

      Pages: 127-130

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Cu-AlOxNOL(Nano-Oxide-Layer)形成課程の考察2006

    • Author(s)
      河崎昇平
    • Journal Title

      日本応用磁気学会誌 30

      Pages: 357-360

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Study on B2 structure epitaxial Fe/Co superlattice2006

    • Author(s)
      In Chang Chu
    • Journal Title

      Journal of Magnetism and Magnetic Materials 304, No.1

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Experimental and Simulation Study to Identify Current-Confined Path in Cu-Al Space Layer for CPP-GMR Spin-Valve Applications2006

    • Author(s)
      J.Y.Sho
    • Journal Title

      IEEE TRANSACTION ON MAGNETICS 42,No.10

      Pages: 2633-2635

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] STRUCTURAL CHARACTERIZATION OF Co_<100-x>Fe_x NANO OXIDE LAYER2006

    • Author(s)
      Hiroaki Endo
    • Journal Title

      JOURNAL OF APPLIED PHYSICS 99,08R703

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Study of the Pinning Assist Effect of Co_<100-x>Fe_x-NOL2006

    • Author(s)
      Hiroaki Endo
    • Journal Title

      J.Magn.Soc.Jpn. 30

      Pages: 127-130

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Consideration on the Formation Mechanism of the Cu-AlO_x NOL2006

    • Author(s)
      Kawasaki
    • Journal Title

      J.Magn.Soc.Jpn. 30

      Pages: 537-360

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] STRUCTURAL CHARACTERIZATION OF Co_<100-X>Fe_x NANO OXIDE LAYER2006

    • Author(s)
      Hiroaki Endo
    • Journal Title

      JOURNAL OF APPLIED PHYSICS 99

    • Related Report
      2006 Annual Research Report
  • [Journal Article] STRUCTURAL CHARACTERIZATION OF Co_<100-x>Fe_x NANO OXIDE LAYER2006

    • Author(s)
      Hiroaki Endo
    • Journal Title

      JOURNAL OF APPLIED PHYSICS 99(印刷中)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Co100xFexNOLのピンアシスト効果について2006

    • Author(s)
      遠藤広明
    • Journal Title

      日本応用磁気学会誌 30

      Pages: 127-127

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Study on B2 structure epitaxial Fe/Co superlattice2006

    • Author(s)
      In Chang Chu
    • Journal Title

      Journal of Magnetism and Magnetic Materials 301(In press)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Enhancement of Room Temperature-Exchange Biasing in Specular Spin Valves2005

    • Author(s)
      M.Doi
    • Journal Title

      IEEE TRANSATION ON MAGNETICS 41

      Pages: 2932-2934

    • NAID

      120000775583

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Exchange Coupling and NOL Magnetism Consideration in Co_<1-x>Fe_x Specular Spin-valves2005

    • Author(s)
      M.Doi
    • Journal Title

      Journal of Magnetism and Magnetic Materials 286

      Pages: 381-386

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary 2005 Annual Research Report
  • [Journal Article] Enhancement of Room Temperature -Exchange Biasing in Specular Spin Valves2005

    • Author(s)
      M.Doi
    • Journal Title

      IEEE TRANSATION ON MAGNETICS 41

      Pages: 2932-2932

    • NAID

      120000775583

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Cu-AlOxNOL(Nano-Oxide-Layer)形成課程の考察2005

    • Author(s)
      河崎昇平
    • Journal Title

      日本応用磁気学会誌 30(印刷中)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Exchange Coupling and NOL Magnetism Consideration in Co_<1-x>Fe_x Specular Spin-valves2005

    • Author(s)
      M.Doi, M.Izumi, Y.Abe, H.Fukuzawa, H.N.Fuke, H.Iwasaki, M.Sahashi
    • Journal Title

      Journal of Magnetism and Magnetic Materials 287

      Pages: 381-386

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Magnetism of Co_<1-x>Fe_x-NOL in Specular Spin-Valves2004

    • Author(s)
      Masaaki Doi
    • Journal Title

      IEEE TRANS ON MAGNETICS 40

      Pages: 2263-2265

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Magnetism of Co_<1-x>Fe_x-NOL in Specular Spin-Valves2004

    • Author(s)
      Masaaki Doi
    • Journal Title

      IEEE TRANS.ON MAGNETICS 40

      Pages: 2263-2265

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Magnetism of Co_<1-x>Fe_x-NOL in Specular Spin-Valves2004

    • Author(s)
      M.Doi, M.Izumi, H.N.Fuke, H.Iwasaki, M.Sahashi
    • Journal Title

      IEEE TRANSATION ON MAGNETICS 40

      Pages: 2263-2265

    • Related Report
      2004 Annual Research Report

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Published: 2004-04-01   Modified: 2016-04-21  

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