Magnetic and Fluorescence Properties of Cerium-doped Yttrium Aluminum Iron Garnet Nanocrystals
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説明
Magnetic and fluorescence properties of Ce:YAIG (CeyY3-yAl5-xFexO12) nanocrystals synthesized by co-precipitation and annealed at 1273 K for 4 hours have been investigated. The structural characterization by X-ray diffraction shows that the samples with 0 ≤ x ≤ 5.0 and 0 ≤ y ≤ 0.2 are in the garnet phase. With increasing x from 0 to 5.0 while y maintained at 0.06, the lattice constant gradually increases from 12.04 nm to 12.40 nm. When y is increased with x fixed at 3.0, only garnet peaks are observed for 0 ≤ y ≤ 0.15, while CeO2 appears to be present besides the garnet when 0.15 ≤ y ≤ 0.2. The saturation magnetization of Ce:YAIG is found to increase from 2.21 emu/g for y = 0 to 4.35 emu/g for y = 0.06 at x = 3.0. With increasing x from 0 to 3.0 at y=0.06, the fluorescent peak observed at ~520 nm gradually diminishes, indicating that the fluorescence of Ce:YAIG is not only dependent on the presence of Ce3+ at the dodecahedral sites but also sensitively on the ratio of Al3+ to Fe3+ at the octahedral and tetrahedral sites in the garnet.
収録刊行物
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- Journal of the Magnetics Society of Japan
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Journal of the Magnetics Society of Japan 37 (3-2), 123-125, 2013
公益社団法人 日本磁気学会
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詳細情報 詳細情報について
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- CRID
- 1390282680262707200
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- NII論文ID
- 40019724411
- 130004502860
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- NII書誌ID
- AA12297999
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- COI
- 1:CAS:528:DC%2BC3sXptVWgtrs%3D
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- ISSN
- 18822932
- 18822924
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- NDL書誌ID
- 024730121
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- CiNii Articles
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- 使用不可