Cite this article:
Li Guo-Ke, Zhang Xiang-Qun, Wu Hong-Ye, Huang Wan-Guo, Jin Jin-Ling, Sun Young, Cheng Zhao-Hua. Electron spin resonance investigation of the substitution of Fe3+ for Ti4+ ions in rutile TiO2 single crystalJ. Chin. Phys. B, 2009, 18(8): 3551-3554.
Li Guo-Ke, Zhang Xiang-Qun, Wu Hong-Ye, Huang Wan-Guo, Jin Jin-Ling, Sun Young, Cheng Zhao-Hua. Electron spin resonance investigation of the substitution of Fe3+ for Ti4+ ions in rutile TiO2 single crystalJ. Chin. Phys. B, 2009, 18(8): 3551-3554.
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Electron spin resonance investigation of the substitution of Fe3+ for Ti4+ ions in rutile TiO2 single crystal
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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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