| Electron spin resonance investigation of the substitution of Fe3^＋ for Ti4^＋ ions in rutile TiO2 single crystal |
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| 引用本文： | 李国科,张向群,吴鸿业,黄万国,靳金玲,孙阳,成昭华.Electron spin resonance investigation of the substitution of Fe3^＋ for Ti4^＋ ions in rutile TiO2 single crystal[J].中国物理 B,2009,18(8):3551-3554. |
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| 作者姓名： | 李国科 张向群 吴鸿业 黄万国 靳金玲 孙阳 成昭华 |
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| 作者单位： | State Key Laboratory of Magnetism and Beijing National
Laboratory of Condensed Matter Physics, Institute of Physicss,
Chinese Academy of Sciences, Beijing 100190, China;State Key Laboratory of Magnetism and Beijing National
Laboratory of Condensed Matter Physics, Institute of Physicss,
Chinese Academy of Sciences, Beijing 100190, China;State Key Laboratory of Magnetism and Beijing National
Laboratory of Condensed Matter Physics, Institute of Physicss,
Chinese Academy of Sciences, Beijing 100190, China;State Key Laboratory of Magnetism and Beijing National
Laboratory of Condensed Matter Physics, Institute of Physicss,
Chinese Academy of Sciences, Beijing 100190, China;State Key Laboratory of Magnetism and Beijing National
Laboratory of Condensed Matter Physics, Institute of Physicss,
Chinese Academy of Sciences, Beijing 100190, China;State Key Laboratory of Magnetism and Beijing National
Laboratory of Condensed Matter Physics, Institute of Physicss,
Chinese Academy of Sciences, Beijing 100190, China;State Key Laboratory of Magnetism and Beijing National
Laboratory of Condensed Matter Physics, Institute of Physicss,
Chinese Academy of Sciences, Beijing 100190, China |
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| 基金项目： | Project supported by the National
Basic Research Program of China (Grant No 2009CB929201) and the
National Natural Science Foundation of China (Grant No 10774179). |
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| 摘 要： | A Fe doped rutile TiO 2 single crystal is grown in an O 2 atmosphere by the floating zone technique.Electron spin resonance (ESR) spectra clearly demonstrate that Fe 3+ ions are substituted for the Ti 4+ ions in the rutile TiO 2 matrix.Magnetization measurements reveal that the Fe:TiO 2 crystal shows paramagnetic behaviour in a temperature range from 5 K to 350 K.The Fe 3+ ions possess weak magnetic anisotropy with an easy axis along the c axis.The annealed Fe:TiO 2 crystal shows spin-glass-like behaviours due to the aggregation of the ferromagnetic clusters.
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| 关 键 词： | rutile electron spin resonance diluted magnetic semiconductors |
| 收稿时间： | 2009-04-14 |
Electron spin resonance investigation of the substitution of Fe3+ for Ti4+ ions in rutile TiO2 single crystal |
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| Li Guo-Ke,Zhang Xiang-Qun,Wu Hong-Ye,Huang Wan-Guo,Jin Jin-Ling,Sun Young and Cheng Zhao-Hua.Electron spin resonance investigation of the substitution of Fe3+ for Ti4+ ions in rutile TiO2 single crystal[J].Chinese Physics B,2009,18(8):3551-3554. |
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| Authors: | Li Guo-Ke Zhang Xiang-Qun Wu Hong-Ye Huang Wan-Guo Jin Jin-Ling Sun Young and Cheng Zhao-Hua |
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| Institution: | State Key Laboratory of Magnetism and Beijing National
Laboratory of Condensed Matter Physics, Institute of Physicss,
Chinese Academy of Sciences, Beijing 100190, China |
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| Abstract: | A Fe doped rutile TiO2 single crystal is grown in an O2
atmosphere by the floating zone technique. Electron spin resonance
(ESR) spectra clearly demonstrate that Fe3+ ions are
substituted for the Ti4+ ions in the rutile TiO2 matrix.
Magnetization measurements reveal that the Fe:TiO2 crystal
shows paramagnetic behaviour in a temperature range from 5~K to
350~K. The Fe3+ ions possess weak magnetic anisotropy with an
easy axis along the c axis. The annealed Fe:TiO2 crystal
shows spin-glass-like behaviours due to the aggregation of the
ferromagnetic clusters. |
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| Keywords: | rutile electron spin resonance diluted magnetic semiconductors |
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