| Microstructure, ferromagnetism, and magnetic transport of Ti1-xCoxO2 amorphous magnetic semiconductor | |
| H. Q. Song; L. M. Mei; S. S. Yan; X. L. Ma; J. P. Liu; Y. Wang; Z. Zhang | |
| 2006 | |
| Source Publication | Journal of Applied Physics
 |
| ISSN | 0021-8979 |
| Volume | 99Issue:12 |
| Abstract | TiO2-based magnetic semiconductors with high Co doping concentrations (Ti1-xCoxO2) were synthesized under thermal nonequilibrium condition by sputtering machine. Microstructure and composition analysis by transmission electron microscopy, x-ray photoelectron spectroscopy, and electron energy-loss spectroscopy indicated that Co element was incorporated into TiO2 to form Ti1-xCoxO2 compound. The direct evidence for the compositional inhomogeneity of the Ti1-xCoxO2 compound was given. Room temperature ferromagnetism with high magnetization was obtained, which could be attributed to the intrinsic properties of the amorphous magnetic semiconductor. The electrical transport in a low temperature range was explained by spin-dependent Efros's variable range hopping, and correspondingly an exponential function of the magnetoresistance versus T-1/2 was found. (c) 2006 American Institute of Physics. |
| description.department | shandong univ, sch phys & microelect, jinan 250100, peoples r china. shandong univ, natl key lab crystal mat, jinan 250100, peoples r china. chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, liaoning, peoples r china. univ texas, dept phys, arlington, tx 76019 usa. chinese acad sci, inst phys, beijing natl lab condensed matter phys, beijing 100080, peoples r china.;song, hq (reprint author), shandong univ, sch phys & microelect, jinan 250100, peoples r china;tianqin@mail.sdu.edu.cn |
| Keyword | Room-temperature Ferromagnetism Doped Titanium-dioxide Thin-films Tio2 Anatase Magnetoresistance Zno |
| URL | 查看原文 |
| WOS ID | WOS:000238730000068 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/34458 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | H. Q. Song,L. M. Mei,S. S. Yan,et al. Microstructure, ferromagnetism, and magnetic transport of Ti1-xCoxO2 amorphous magnetic semiconductor[J]. Journal of Applied Physics,2006,99(12). |
| APA | H. Q. Song.,L. M. Mei.,S. S. Yan.,X. L. Ma.,J. P. Liu.,...&Z. Zhang.(2006).Microstructure, ferromagnetism, and magnetic transport of Ti1-xCoxO2 amorphous magnetic semiconductor.Journal of Applied Physics,99(12). |
| MLA | H. Q. Song,et al."Microstructure, ferromagnetism, and magnetic transport of Ti1-xCoxO2 amorphous magnetic semiconductor".Journal of Applied Physics 99.12(2006). |
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