| Oxygen vacancy-induced room-temperature ferromagnetism in D-D neutron irradiated single-crystal TiO2 （001） rutile |
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| 引用本文： | 许楠楠,李公平,潘小东,王云波,陈景升,包良满.Oxygen vacancy-induced room-temperature ferromagnetism in D-D neutron irradiated single-crystal TiO2 （001） rutile[J].中国物理 B,2014(10):361-365. |
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| 作者姓名： | 许楠楠 李公平 潘小东 王云波 陈景升 包良满 |
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| 作者单位： | School of Nuclear Science and Technology, Lanzhou University;State Key Laboratory of Crystal Material, Shandong University;Key Laboratory of Beam Technology and Material Modification of Ministry of Education, Beijing Normal University;Department of Materials Science and Engineering, National University of Singapore;Shanghai Institute of Applied Physics, Chinese Academy of Sciences |
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| 基金项目： | Project supported by the Open Project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education,Lanzhou University(Grant No.LZUMMM2012003);the Open Project of Key Laboratory of Beam Technology and Material Modification of Ministry of Education,Beijing Normal University(Grant No.201204);the Open Project of State Key Laboratory of Crystal Material,Shandong University,China(Grant No.KF1311) |
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| 摘 要： | Remarkable room temperature ferromagnetism in pure single-crystal rutile TiO2 （001） samples irradiated by D-D neutron has been investigated. By combining X-ray diffraction and positron annihilation lifetime, the contracted lattice has been clearly identified in irradiated TiO2, where Ti4＋ ions can be easily reduced to the state of Ti3＋. As there were no magnetic impurities that could contaminate the samples during the whole procedure, some Ti3＋ ions reside on interstitial or substituted sites accompanied by oxygen vacancies should be responsible for the ferromagnetism.
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| 关 键 词： | 金红石TiO2 纳米TiO2 铁磁性 氧空位 中子辐照 单晶 室温 正电子湮没寿命 |
Oxygen vacancy-induced room-temperature ferromagnetism in D–D neutron irradiated single-crystal TiO2（001） rutile |
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| Xu Nan-Nan;Li Gong-Ping;Pan Xiao-Dong;Wang Yun-Bo;Chen Jing-Sheng;Bao Liang-Man.Oxygen vacancy-induced room-temperature ferromagnetism in D–D neutron irradiated single-crystal TiO2（001） rutile[J].Chinese Physics B,2014(10):361-365. |
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| Authors: | Xu Nan-Nan;Li Gong-Ping;Pan Xiao-Dong;Wang Yun-Bo;Chen Jing-Sheng;Bao Liang-Man |
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| Abstract: | D-D neutron, single-crystal TiO2, defects, do magnetism |
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| Keywords: | D-D neutron single-crystal TiO2 defects do magnetism |
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