| Low-field positive and high-field negative magneto-resistances in multiphase Fe-oxide thin films at room temperature | |
| K. Zhao; J. Xing; Y. Z. Liu; J. G. Zhao; H. B. Lu | |
| 2007 | |
| Source Publication | Chinese Science Bulletin
 |
| ISSN | 1001-6538 |
| Volume | 52Issue:12Pages:1607-1611 |
| Abstract | Multiphase Fe-oxide thin films are fabricated on glass substrates by a facing-target sputtering technique. X-ray diffraction and X-ray photoelectron spectroscopy reveal that Fe, FeA, rFe(2)O(3) and FeO coexist in the films. High resolution transmission electron microscopy shows the well-defined columnar grain structure with the unoxidized Fe as the core and iron-oxide as the shell. The low-field positive and high-field negative magnetoresistances coexist in such a system at room temperature, which can be explained by considering a shell/core model. Nonlinear current-voltage curve and photovoltaic effect further confirm the tunneling-type conduction. |
| description.department | china univ petroleum, dept math & phys, beijing 102249, peoples r china. chinese acad sci, inst phys, beijing natl lab condensed matter phys, beijing 100080, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;zhao, k (reprint author), china univ petroleum, dept math & phys, beijing 102249, peoples r china;zhk@cup.edu.cn |
| Keyword | Magnetoresistance Magnetic Properties Thin Film Ultrafine Iron Particles Core-shell Tunnel-junctions Nanoparticles Fe3o4 Fabrication Phase |
| URL | 查看原文 |
| WOS ID | WOS:000247578400004 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/34072 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | K. Zhao,J. Xing,Y. Z. Liu,et al. Low-field positive and high-field negative magneto-resistances in multiphase Fe-oxide thin films at room temperature[J]. Chinese Science Bulletin,2007,52(12):1607-1611. |
| APA | K. Zhao,J. Xing,Y. Z. Liu,J. G. Zhao,&H. B. Lu.(2007).Low-field positive and high-field negative magneto-resistances in multiphase Fe-oxide thin films at room temperature.Chinese Science Bulletin,52(12),1607-1611. |
| MLA | K. Zhao,et al."Low-field positive and high-field negative magneto-resistances in multiphase Fe-oxide thin films at room temperature".Chinese Science Bulletin 52.12(2007):1607-1611. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment