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Development of high quality ferromagnetic tunnel barrier and realization of tunneling spin filter devices

Development of high quality ferromagnetic tunnel barrier and realization of tunneling spin filter devices
高质量铁磁隧道势垒的研制及隧道自旋过滤器件的实现
批准号:
22740223
负责人:
TANAKA Masaaki
金额:
$2.33万
依托单位国家:
日本
项目类别:
Grant-in-Aid for Young Scientists (B)
财政年份:
2010
资助国家:
日本
项目状态:
已结题
起止时间:
2010 至 2012

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中文摘要
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英文摘要
In this study, tunneling-spin filtering effect of ferromagnetic insulator CoFe_2O_4 with perpendicular magnetic anisotropy was studied. To improvement surface flatness of CoFe_2O_4 films, the films were grown on MgO(001) substrates by pulse laser deposition method with a shadow mask. The CoFe_2O_4 films without droplet formation with perpendicular anisotropy energy density of 2.36x106 erg/cm3 were obtained. Magnetoresistance measurements were carried out for magnetic tunnel junctions (MTJs) using MgO/CoFe_2O_4 and ferromagnetic metal L10-type FePd electrodes fabricated on MgO (001) substrates. The tunnel magnetoresistance ratio of 0.7% at 5 K and 16.5% at 300 K was obtained for the MTJs.
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Studieson spin-filtering CoFe_2O_4 layers forroom-temperature TMR effect
自旋过滤CoFe_2O_4层室温TMR效应研究
DOI: --
发表时间: 2012
期刊:
影响因子: --
作者: [R. Yamanaka, K. Matsubayashi, Y. Saiga, T. Kawae, Y. Uwatoko, 奈木南,中川浩次,田中雅章,壬生攻]
通讯作者: 奈木南,中川浩次,田中雅章,壬生攻
Semiconductor Materials and Devices with Nonvolatile and Reconfigurable Functions
  • 批准号:
    23000010
  • 项目类别:
    Grant-in-Aid for Specially Promoted Research
  • 资助金额:
    $345.03万
  • 财政年份:
    2011
  • 负责人:
    TANAKA Masaaki
  • 依托单位:
Realization of tunneling-spin filter devices using MgO(001) substrates
  • 批准号:
    20840023
  • 项目类别:
    Grant-in-Aid for Young Scientists (Start-up)
  • 资助金额:
    $2.1万
  • 财政年份:
    2008
  • 负责人:
    TANAKA Masaaki
  • 依托单位:
Clarification for the central regulation of physical fatigue
  • 批准号:
    20500581
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
  • 资助金额:
    $2.58万
  • 财政年份:
    2008
  • 负责人:
    TANAKA Masaaki
  • 依托单位:
Semiconductor Spintronics Heterostructure Electronic Devices
  • 批准号:
    14076207
  • 项目类别:
    Grant-in-Aid for Scientific Research on Priority Areas
  • 资助金额:
    $27.52万
  • 财政年份:
    2002
  • 负责人:
    TANAKA Masaaki
  • 依托单位:
海外基金