Characterization of Bi-substituted Dysprosium Iron Garnet Films Prepared by Sol-gel Process
Author(s): Yuepin ZHANG, Xianying WANG, Haiping XIA, Defang SHEN, Fuxi GAN, Songyou WANG, Liangyao CHEN
Pages: 66-68
Year: 2004 Issue: 1
Journal: JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
Keyword: Garnet films; Magneto-optical properties; Sol-gel process;
Abstract: Bi-substituted dysprosium iron garnet films were prepared by sol-gel process, and were annealed for crystallization. The crystallographic structures of garnet films annealed at different temperatures were analyzed by XRD, the film annealed at 650℃ was polycrystalline garnet with no preferred orientation and no impurity crystalline phase. Magnetic and magnetooptical properties were investigated, the film had magnetic anisotropy perpendicular to the film plane, and exhibited strong coercivity of 1100～1600 Oe and high squareness. These films had large figures of merit applicable to magneto-optic storage,with 2 deg. at λ=430 nm and 1.5 deg. at λ=520 nm respectively.
Pages: 66-68
Year: 2004 Issue: 1
Journal: JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
Keyword: Garnet films; Magneto-optical properties; Sol-gel process;
Abstract: Bi-substituted dysprosium iron garnet films were prepared by sol-gel process, and were annealed for crystallization. The crystallographic structures of garnet films annealed at different temperatures were analyzed by XRD, the film annealed at 650℃ was polycrystalline garnet with no preferred orientation and no impurity crystalline phase. Magnetic and magnetooptical properties were investigated, the film had magnetic anisotropy perpendicular to the film plane, and exhibited strong coercivity of 1100～1600 Oe and high squareness. These films had large figures of merit applicable to magneto-optic storage,with 2 deg. at λ=430 nm and 1.5 deg. at λ=520 nm respectively.
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