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Study on the properties and application of rare earth-iron group multi-component amorphous thin films

Research Project

Project/Area Number 60420034
Research Category

Grant-in-Aid for General Scientific Research (A)

Allocation TypeSingle-year Grants
Research Field 電子材料工学
Research InstitutionNAGOYA UNIVERSITY

Principal Investigator

UCHIYAMA Susumu  Nagoya University, 工学部, 教授 (40023022)

Co-Investigator(Kenkyū-buntansha) TSUNASHIMA Shigeru  Nagoya University, 工学部, 助教授 (80023323)
Project Period (FY) 1985 – 1988
Project Status Completed (Fiscal Year 1988)
Budget Amount *help
¥23,300,000 (Direct Cost: ¥23,300,000)
Fiscal Year 1988: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1987: ¥2,600,000 (Direct Cost: ¥2,600,000)
Fiscal Year 1986: ¥6,000,000 (Direct Cost: ¥6,000,000)
Fiscal Year 1985: ¥13,900,000 (Direct Cost: ¥13,900,000)
Keywordsamorphous / rare earth / magnetooptical effects / magnetic anisotropy / magnetostriction / magnetrooptical recording / magnetic thin films / gadolinium / holmium / neodymium / テルビウム / ホロニウム / 磁性薄膜 / ガトリニウム / ネオジム / カー効果 / 光記録 / オプテイカルディスク / 記録材料
Research Abstract

Rare earth - iron group transition metal (RE-TM) amorphous films have been systematically studied for the fundamental understanding of their magnetic and magnetooptical properties. From the application point of view, high quality magnetooptical recoding materials have been also developed.
The important results and findings are summarized as follows. 1. Systematic measurements of magnetooptical spectra for various RE-TM films and their interpretation based on the band structure. 2. Observation and understanding of the contribution of various RE to the perpendicular magnetic anisotropy and the magnetostriction. 3. Improvement of the corrosion resistance and development of ultra high density recording materials for magnetooptical disks. 4. Inducement of perpendicular magnetic anisotropy using artificial superlattices.
The most important results of this research is that the magnetoptical effects of various RE are systematically understood. Especially it is the first time that the contribution of 4f electrons to the magnetooptical effect is experimentally and systematically proved. As for the perpendicular anisotropy and magnetostriction, systematic study is still open for further experiments but some interesting results, such as the magnetostriction of amorphous Gd and the perpendicular anisotropy of ErCo compositionally modurated films, have been found.
We have also developed a new magnetooptical recoding material for ultra high density optical disk storages using short wavelength laser. Nd alloy/Tb alloy aouble layer films showed Kerr rotation lager than TbFe and the magnetization perpendicular to the film plane.

Report

(5 results)
  • 1988 Annual Research Report   Final Research Report Summary
  • 1987 Annual Research Report
  • 1986 Annual Research Report
  • 1985 Annual Research Report
  • Research Products

    (26 results)

All Other

All Publications (26 results)

  • [Publications] 中村正行,石田達朗,綱島滋,内山晋: 日本応用磁気学会誌. 11. 201-204 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Mu Lu;Y.J.Choe;S.Tsunashima;S.Uchiyama: Jpn.J.Appl.Phys.26. 1073-1076 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Y.J.Choe;S.Tsunashima;T.Katayama;S.Uchiyama: J.Magn.Soc.Jpn.11ーS1. 273-276 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] S.Tsunashima;M.Nakamura;T.Ishida;S.Uchiyama: IEEE Trans.Magn.MAGー23. 3205-3207 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] S.Yoshino;M.Masuda;S.Tsunashima;S.Uchiyama: J.Appl.Phys.64. 5498-5500 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 崔英俊,長瀬和義,綱島滋,内山晋: 日本応用磁気学会誌. 12. 207-210 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] K.Aratani; T.Kobayashi; S.Tsunashima; S.Uchiyama: "Magnetic and Magnetooptic Properties of Tb-FeCo-Al Films" J. Appl. Phys.57. 3903-3905 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Mu. Lu; Y.J. Choe; S. Tsunashima; S. Tsunashima: "Magnetic Anisotropy and Magneto-Optic Kerr Spectra of Amorphous Ho-Co Thin Films." Jpn. J. Appl. Phys.26. 1073-1076 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] S. Tsunashima; M. Nakamura; T. Ishida; S. Uchiyama: "Magneto-Optic Kerr Effect of Amorphous Gd-Fe Films" IEEE Trans. Magn.23. 3205-3207 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] S. Yoshino; S. Tsunashima; M. Masuda; S. Uchiyama: "Magnetostriction of Amorphous GdFeCo Thin Films" Jpn. J. Appl. Phys.27. 1247-1249 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] M. Nawate; S. Tsunashima; S. Uchiyama: "Perpendicular Anisotropy of Bias Modulated ErCo Sputtered Films" J. Appl. Phys.64. 5498-5500 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] S.Tsunashima;Y.J.Choe;K.Ito;S.Uchiyama: Proc.Internat.Meeting on Advanced Materials(to be published). (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] M.Nawate;S.Tsunashima;S.Uchiyama: J.Appl.Phys.64. 5437-5439 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] S.Yoshino;M.Masuda;S.Tsunashima;S.Uchiyama: J.Appl.Phys.64. 5498-5500 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] Y.J.Choe;S.Tsunashima: J.de Phys.(1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] S.Tsunashima;T.Ichikawa;M.Nawate;S.Uchiyama: J.de Phys.(1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] 崔英俊,長瀬和義,綱島滋,内山晋: 日本応用磁気学会誌. 12. 207-210 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] K.Shiba: IEEE Trans.magn.MAG-22. 1104-1106 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] M.Lu: Jpn.J.Appl.Phys.(1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] 中村正行: 日本応用磁気学会誌. 11. (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] S.Tsunashima: IEEE Trans.Magn.MAG. (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] Y.Che: J.Mag.Soc.Jpn. 11. (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] 内山晋: 電気学会誌. 107. 14-18 (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] S.Uchiyama: "Recent Magnetics for Electronics 1985/1986" オーム社・North-Holland, 11 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] J.Appl.Phys.57-(1). (1985)

    • Related Report
      1985 Annual Research Report
  • [Publications] 日本応用磁気学会誌. 9-2. (1985)

    • Related Report
      1985 Annual Research Report

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Published: 1987-03-31   Modified: 2016-04-21  

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