| Enhancement of the Magneto-Optical Kerr Rotation at Short Wavelength in Sputtered Ag／TbFeCo Bilayer Films |
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| 引用本文： | 郜小勇,张晋敏,王松有,陈良尧.Enhancement of the Magneto-Optical Kerr Rotation at Short Wavelength in Sputtered Ag／TbFeCo Bilayer Films[J].中国物理快报,2005,22(3):701-704. |
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| 作者姓名： | 郜小勇 张晋敏 王松有 陈良尧 |
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| 作者单位： | [1]TheKeyLaboratoryofMaterialsPhysicsofMinistryofEducation,ZhengzhouUniversity,Zhengzhou4500522DepartmentofPhysics,GuizhouUniversity,Guiyang550025 [2]DepartmentofPhysics,GuizhouUniversity,Guiyang550025 [3]DepartmentofOpticalScienceandEngineering,FudanUniversity,Shanghai200433 |
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| 摘 要： | The magneto-optical Kerr rotation is enhanced at short wavelengths in sputtered Ag/TbFeCo bilayer films in which Ag not only acts as a protecting layer against the oxidation of TbFeCo, but also induces the enhancement of the magneto-optical Kerr rotation at short wavelengths. The enhancement of the Kerr rotation of Ag/TbFeCo bilayer films is not mainly due to the low optical constant of Ag near its plasma absorption edge and the interference effect occurring at the interface between Ag and TbFeCo, but due to the polarization of Ag d electrons caused by the ferromagnetic TbFeCo layer, which causes the off-diagonal elements of dielectric constant tensor of Ag/TbFeCo to be greatly increased.
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| 关 键 词： | 磁-光柯尔旋转 波长 溅射双分子薄膜 TbFeCo 等离子体吸收 |
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