• Title/Summary/Keyword: [CoFe/Pt/CoFe]/IrMn 다층박막

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Anisotropy Angle Dependence of Interlayer Exchange Coupling of Perpendicular Magnetic [CoFe/Pt/CoFe]/IrMn Multilayers ([CoFe/Pt/CoFe]/IrMn 다층박막의 수직자기 이방성 각도에 따른 상호교환결합력 특성)

  • Lee, Sang-Suk;Choi, Jong-Gu;Hwang, Do-Guwn;Rhee, Jang-Roh
    • Journal of the Korean Magnetics Society
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    • v.18 no.6
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    • pp.232-236
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    • 2008
  • Dependence of interlayer exchange coupling on antiferromagnetic IrMn thickness, thermal stability, and parallel anisotropy angle in perpendicular anisotropy [CoFe/Pt/CoFe]/IrMn multilayers was investigated. The magnetic property of [CoFe($10{\AA}$)/Pt($8{\AA}$)/CoFe($10{\AA}$)] induced by antiferromagnetic ordering of IrMn layer was maintained a stable perpendicular anisotropy up to $250^{\circ}C$ and from $7{\AA}$ to $160{\AA}$ of IrMn thickness. The value of interlayer exchange coupling of [CoFe/Pt/CoFe]/IrMn multilayers with perpendicular anisotropy increased to 1.5 times at anisotropy angle of $60^{\circ}$ more than of $0^{\circ}$. On the other side, the interlayer exchange coupling at anisotropy angle of $90^{\circ}$ was $\infty$ Oe, it was likely diverted to a parallel shape magnetization.