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Magnetic Properties of Artificial Super Lattice and its Application for magneto-optical Recording Media

Research Project

Project/Area Number 01460139
Research Category

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

Allocation TypeSingle-year Grants
Research Field 電子材料工学
Research InstitutionNagoya University

Principal Investigator

UCHIYAMA Susumu  Nagoya University, Faculty of Engineering, Professor, 工学部, 教授 (40023022)

Co-Investigator(Kenkyū-buntansha) TSUNASHIMA Shigeru  Nagoya University, Faculty of Engineering, Associate Professor, 工学部, 助教授 (80023323)
縄手 雅彦  名古屋大学, 工学部, 助手 (10198400)
Project Period (FY) 1989 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥6,800,000 (Direct Cost: ¥6,800,000)
Fiscal Year 1991: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1990: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1989: ¥6,200,000 (Direct Cost: ¥6,200,000)
KeywordsMagneto-optical Recording Media / Magnetic Thin Film / Magneto-optical Effect / Palladium Cobalt Super Lattice / Perpendicular Magnetic Anisotropy / Magnetostriction / 人工格子 / コバルト / 貴金属 / 光磁気記録 / 磁気ひずみ / 下地効果
Research Abstract

Artificially superstructured as well as compositonally modulated multilayers show often enhanced magnetic anisotropy with the easy axis perpendicular to the film plane, and this anisotropy is very attractive in applications such as magnetic and magneto-optic recording. In this research, we have investigated magnetic properties in two type of multilayers, one is noble metal (Nm) /transition metal (TM) multilayer, the other is rareearth (RE) /transition metal containing light RE, which have advantage to magnetooptic Kerr effect at short wavelength compared with usial TbFeCo alloy.
I. NM/TM multilayers
Multilayers consists of NM (Pd, Pt, Cu, Au, PdSi) and TM (Co, Ni, PdCo, PtCo, CoZr) layers were prepared by rf sputtering method on glass and/or MgO single crystal substrates. The perpendicular magnetic anisotropy was examined in relation to the magnetostriction, lattice misfits, crystanity and crystal orientations. The results suggest that the perpendicular magnetic anisotropy in NM/PdCo-alloy multilayers originates from the magnetoelastic energy of the PdCo layers under a stress due to the lattice misfits. In both Pd/Co and Pd/Ni multilayers, the anisotropy, was found to depend on the crystal orientation, and the dependence could be attributed to the anisotropic magnetostriction constants of these alloys.
II. RE/TM multilayers
Magnetic and magneto-optic properties have been investigated for NdGd/Fe and NdGd/FeCo multilayers prepared by rf sputtering method. At bilayer period of 10 to 15 A, perpendicular magnetic anisotropy showed the maximum value of about 2.5 X 10^6 erg/cm^3, magneto-optic Kerr rotation in the multilayers reach 0.33 at 400 nm, reflecting the contribution of Nd.

Report

(4 results)
  • 1991 Annual Research Report   Final Research Report Summary
  • 1990 Annual Research Report
  • 1989 Annual Research Report
  • Research Products

    (59 results)

All Other

All Publications (59 results)

  • [Publications] 中村 公夫: "Pd/Co多層膜の磁気および磁気光学特性" 日本応用磁気学会誌. 13. 319-322 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Y.J.Choe: "Magnetic and Magneto-Optical Properties of Amorphous Rare Earth-Transition'Metal Multi-layered Films" MRS International Meeting on Advanced Materials. 10. 355-360 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] K.Nakamura: "Magneto-Optical Properties of PdCo Based Multilayered Films" IEEE Trans.Magn.,. 25. 3758-3760 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] K.Nagase: "Perpendicular Magnetic Anisotropy of Pd-Co Alloy Films and related Multilayers" IEEE Trans.Magn.25. 3761-3763 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] M.Nawate: "Exchange Anisotropy in Tb/Co Multilayered Film" Proc.10th Intnational Workshop on Rare-Earth Magnets. 10. 381-388 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 長谷川 雅俊: "Pd/Co多層膜の構造と磁気特性への下地膜の影響" 日本応用磁気学会誌. 14. 367-370 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] N.Nawate: "Perpendicular Magnetic Aniso tropy in NdCo/TM Multilayered Films" IEEE Trans.Magn.26. 1706-1708 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] S.Tsunashima: "Perpendicular Magnetic Anisotropy of PdCo and PtCo Based Multilayers" IEEE Trans.Magn.26. 2724-2726 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] M.Nawate: "Magnetization Properties Tb/Co Multilayered Films" IEEE Trans.Magn.,. 26. 2739-2741 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] H.Takahashi: "Magnetic Properties of PdNi Alloys and Multilayers" J.Magn.Magn.mat.93. 469-471 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] S.Tsunashima: "Perpendicular Magnetic Aniso and Coercivity of Pd/Co and Pt/Co Multilayers with Buffer Layers" J.Magn.Magn.Mat.93. 465-468 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] K.Nakamura: "Perpendicular Magnetic Anisotropy of PdCo Alloy in Multilayered Structure" J.Magn.Magn.Mat.93. 93. 462-464 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] S.Sumi: "High Density Recording on Pt/Co MO Disk Using Blue Laser" J.Magn.Soc.Jpn.15,S1. 365-368 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] S.Tsunashima: "Perpendicular Magnetic Anisotropy of Pd/Co and Related Multilayers" Magnetic Thin Films,Multilayers & Surface Proc.MRS Symposium.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] S.Tsunashima: "Magnetic and Magnetooptic Properties of(NdGd)/(FeCo)Multilayers" J.Magn.Magn.Mat.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] H.Takahashi: "Perpendicular Magnetic Anisotropy op Pd/Co and Pd/Ni Multilayers" J.Magn.Magn.Mat.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] K. Nakamura, S. Tsunashima, S. Iwata and S. Uchiyama: ""Magnetic and Magneto-Optical Properties of Pd/Co Multilayered Films"" J. Magnetics Soc. Jpn.13(2). 319-322 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Y. J. Choe, K. Ito and S. Uchiyama: ""Magnetic and Magneto-Optical Properties of Amorphous Rare Earth-Transition Metal Multilayered Films"" MRS International Meeting on Advanced Materials. 10. 355-360 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] K. Nakamura, S. Iwata and S. Uchiyama: ""Magneto-Optical Properties of PdCo Based Multilayered Films"" IEEE Trans. Magn.25(5). 3758-3760 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] K. Nagase, K. Nakamura and S. Uchiyama: ""Perpendicular Magnetic Anisotropy of Pd-Co Alloy Films and related Multilayers"" IEEE Trans. Magn.25(5). 3761-3763 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] M. Nawate, T. Morikawa and S. Uchiyama: ""Exchange Anisotropy in Tb/Co Multilayered Film"" Proc. 10th International Workshop on Rare-Earth Magnets. 381-388 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] M. Hasegawa, S. Tsunashima, K. Nakamura and S. Uchiyama: ""Structure and Magnetic Properties of Pd/Co Multilayered Films with Various Buffer Layers"" J. Magnetcs Soc. Jpn.14(2). 367-370 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] M. Nawate, T. Otani, S. Tsunashima and S. Uchiyama: ""Perpendicular Magnetic Anisotropy in NdCo/TM Multilayered Films"" IEEE Trans. Magn.26(5). 1706-1708 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] S. Tsunashima, K. Nakamura and S. Uchiyama: ""Perpendicular Magnetic Anisotropy of PdCo and PtCo Based Multilayers"" IEEE Trans. Magn.26(5). 2724-2726 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] M. Nawate, T. Morikawa, S. Tsunashima and S. Uchiyama: ""Magnetization Properties of Tb/Co Multi-Layered Films"" IEEE Trans. Magn.26(5). 2739-2741 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] K. Nakamura, S. Tsunashima, M. Hasegawa and S. Uchiyama: ""Perpendicular magnetic anisotropy of PdCo alloy in multilayered structure"" J. Magn. and Magn. Mater.93. 462-464 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] S. Tsunashima, M. Hasegawa, K. Nakamura and S. Uchiyama: ""Perpendicular magnetic anisotropy and coercivity of Pd/Co and Pt/Co multilayers with buffer layers" J. Magn. Magn. Mater. 93. 465-468 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] H. Takahashi, S. Tsunashima, S. Fukatsu, and S. Uchiyama: ""Magnetic properties of PdNi alloys and multilayers" J. Magn. and Magn. Mater.93. 469-471 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] S. Sumi, K. Tanase, Y. Fuchigami, K. Trazawa, S. Tsunashima and S. Uchiyama: ""High density recording on Pt/Co MO disk using blue laser"" J. Magn. Soc. Jpn.15(S1). 365-368 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] S. Tsunashima, K. Nakamura, H. Takahashi, S. Fukatsu and S. Uchiyama: ""Perpendicular magnetic anisotropy of Pd/Co and related multilayers"" Magnetic Thin Films, Multilayers and Surface. Materials Research Society.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] S. Tsunashima, T. Otani, X. Y. Yu and S. Uchiyama: ""Magnetic and magnetooptic properties of (NdGd) / (FeCo) Multilayers"" J. Magn. and Magn. Mater.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] H. Takahashi, S. Fukatsu, S. Tsunashima and S. Uchiyama: ""Perpendicular magnetic anisotropy of Pd/Co and Pd/Ni Multilayers"" J. Magn. and Magn. Mater.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 中村 公夫: "Pd/Co多層膜の磁気および磁気光学特性" 日本応用磁気学会誌. 13. 319-322 (1989)

    • Related Report
      1991 Annual Research Report
  • [Publications] Y.J.Choe: "Magnetic and MagnetoーOptical Properties of Amorphous Rare EarthーTransition Metal Multiーlayered Films" MRS International Meeting on Advanced Materials. 10. 355-360 (1989)

    • Related Report
      1991 Annual Research Report
  • [Publications] K.Nakamura: "MagnetoーOptical Properties of PdCo Based Multilayered Films" IEEE Trans.Magn.25. 3758-3760 (1989)

    • Related Report
      1991 Annual Research Report
  • [Publications] K.Nagase: "Perpendicular Magnetic Anisotropy of PdーCo Alloy Films and related Multilayers" IEEE Trans.Magn.25. 3761-3763 (1989)

    • Related Report
      1991 Annual Research Report
  • [Publications] M.Nawate: "Exchange Anisotropy in Tb/Co Multilayered Film" Proc.10th Intnational Workshop on RareーEarth Magnets. 10. 381-388 (1989)

    • Related Report
      1991 Annual Research Report
  • [Publications] 長谷川 雅俊: "Pd/Co多層膜の構造と磁気特性への下地膜の影響" 日本応用磁気学会誌. 14. 367-370 (1990)

    • Related Report
      1991 Annual Research Report
  • [Publications] N.Nawate: "Perpendicular Magnetic Anisotropy in NdCo/TM Multilayered Films" IEEE Trans.Magn.26. 1706-1708 (1990)

    • Related Report
      1991 Annual Research Report
  • [Publications] S.Tsunashima: "Perpendicular Magnetic Anisotropy of PdCo and PtCo Based Multilayers" IEEE Trans.Magn.26. 2724-2726 (1990)

    • Related Report
      1991 Annual Research Report
  • [Publications] M.Nawate: "Magnetization Properties Tb/Co Multilayered Films" IEEE Trans.Magn.26. 2739-2741 (1990)

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Takahashi: "Magnetic Properties of PdNi Alloys and Multilayers" J.Magn.Magn.Mat.93. 469-471 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] S.Tsunashima: "Perpendicular Magnetic Anisotropy and Coercivity of Pd/Co and Pt/Co Multilayers with Buffer Layers" J.Magn.Magn.Mat.93. 465-468 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] K.Nakamura: "Perpendicular Magnetic Anisotropy of PdCo Alloy in Multilayered Structure" J.Magn.Magn.Mat.93. 93. 462-464 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] S.Sumi: "High Density Recording on Pt/Co MO Disk Using Blue Laser" J.Magn.Soc.Jpn.15.S1. 365-368 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] S.Tsunashima: "Perpendicular Magnetic Anisotropy of Pd/Co and Related Multilayers" Magnetic Thin Films,Multilayers & Surface Proc.MRS Symposium.

    • Related Report
      1991 Annual Research Report
  • [Publications] S.Tsunashima: "Magnetic and Magnetooptic Properties of (NdGd)/(FeCo) Multilayers" J.Magn.Magn.Mat.

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Takahashi: "Perpendicular Magnetic Anisotropy of Pd/Co and Pd/Ni Multilayers" J.Magn.Magn.Mat.

    • Related Report
      1991 Annual Research Report
  • [Publications] M.Nawato: "Perpendicular Magnetic Anisotropy in NdCo/TM Multilayered Films" IEEE Trans.Magn.26. 1706-1708 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] S.Tsunashima: "Perpendicular Magnetic Anisotropy of PdCo and PtCo Based Multilayers" IEEE Trans.Magn.26. 2724-2726 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] M.Nawawato: "Magnetic Property of Tb/Co Multilayered Films" IEEE Trans.Magn.26. 2737-2741 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] S.Tsunashima: "Perpendicular magnetic Anisotropy and Coercivity of Pd/Co and Pt/Co Multilayers with Buffer layers" J.Magn.Magn.Mat.

    • Related Report
      1990 Annual Research Report
  • [Publications] K.Nakamura: "Perpendicular Magnetic Anisotropy of PdCo Alloy in Multilayered Structure" J.Magn.Magn.Mat.

    • Related Report
      1990 Annual Research Report
  • [Publications] H.Takahashi: "Magnetic Properties of PdNi Alloys and Multilayers" J.Magn.Magn.Mat.

    • Related Report
      1990 Annual Research Report
  • [Publications] 中村公夫,綱島滋,岩田聡,内山晋: "Pd/Co多層膜の磁気および磁気光学特性" 日本応用磁気学会誌. 13. 319-322 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] S.Tsunashima,K.Nagase,K.Nakamura and S.Uchiyama: "Perpendicular Magnetic Anisotropy of Pd-Co Alloy Films and Related Multilayers" IEEE Trans.on Magnetics. 25. 3761-3763 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] K.Nakamura,S.Tsunashima S.Iwata and S.Uchiyama: "Magneto-Optical Properties of PdCo Based Multilayered Films" IEEE Trans.on Magnetics. 25. 3758-3760 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] S.Tsunashima,K.Nakamura and S.Uchiyama: "Perpedicular Magnetic Anisotropy of PdCo Based Multilayers" IEEE Trans.on Magnetics. (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] 長谷川雅俊,綱島滋,中村公夫,内山晋: "Pd/Co多層膜の構造と磁気特性への下地膜の影響" 日本応用磁気学会誌. 14. (1990)

    • Related Report
      1989 Annual Research Report

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Published: 1989-04-01   Modified: 2016-04-21  

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