| Original Articles |
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Structure and Magnetic Properties of Sputtered Bi2DyFe5O12 Films |
| GU Benxi;ZHANG Hongyan;ZHAI Hongru;LU Mu;MIAO Yongzhi |
| Department of Physics, Nanjing University, Nanjing 210008 |
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| Cite this article: |
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GU Benxi, ZHANG Hongyan, ZHAI Hongru et al 1994 Chin. Phys. Lett. 11 61-64 |
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Abstract The effects of the annealing temperature and time on the structure and magnetic properties of the sputtered BiDy-iron garnet films were investigated. X-ray diffraction analysis shows that the as-sputtered films are amorphous. After annealing at about 550°C, amorphous films crystallize into the garnet phase and an unknown phase. The intensity of the unknown phase decreases with increasing annealing temperature and time and vanishes at 650°C for 30min. It is found that the unknown phase has a large influence on the half-width of the (420) x-ray diffraction peak. The as-sputtered films have a very small magnetization of about 1 emu/g at room temperature. When films are annealed above 570°C, the magnetization increases rapidly with increasing annealing temperature and time.
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| Keywords:
75.50.Gg
75.50.Kj
75.70.Ak
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Published: 01 January 1994
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| PACS: |
75.50.Gg
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(Ferrimagnetics)
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75.50.Kj
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(Amorphous and quasicrystalline magnetic materials)
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75.70.Ak
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(Magnetic properties of monolayers and thin films)
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