| Theoretical prediction and experimental realization of transition metal doped rutiles as diluted magnetic semiconductors |
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| 引用本文： | GU Yousong LI Jianmin ZHAN Xiaoyuan ZHANG Xiaomei FENG Ziqi ZHANG Yue. Theoretical prediction and experimental realization of transition metal doped rutiles as diluted magnetic semiconductors[J]. 稀有金属(英文版), 2006, 25(5): 420-426. DOI: 10.1016/S1001-0521(06)60078-8 |
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| 作者姓名： | GU Yousong LI Jianmin ZHAN Xiaoyuan ZHANG Xiaomei FENG Ziqi ZHANG Yue |
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| 作者单位： | Department of Material Physics and Chemistry, University of Science and Technology Beijing, Beijing 100083, China |
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| 摘 要： | 1. Introduction The new research area of ‘spintronics’ seeks to extend the properties and applications of electronic devices by making use of the spin of electrons in ad- dition to their charge. The development of magnetic semiconductors would be compatible with standard semiconductor technology and open new opportuni- ties. The so-called diluted magnetic semiconductor (DMS) is used to denote the no magnetic semicon- ductor doped with magnetic ions, and there have been considerable progress…
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| 关 键 词： | 低磁性半导体 氧化钛 快速计算法则 磁控溅射 |
| 收稿时间： | 2006-06-28 |
Theoretical prediction and experimental realization of transition metal doped rutiles as diluted magnetic semiconductors |
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| GU Yousong,LI Jianmin,ZHAN Xiaoyuan,ZHANG Xiaomei,FENG Ziqi,ZHANG Yue. Theoretical prediction and experimental realization of transition metal doped rutiles as diluted magnetic semiconductors[J]. Rare Metals, 2006, 25(5): 420-426. DOI: 10.1016/S1001-0521(06)60078-8 |
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| Authors: | GU Yousong LI Jianmin ZHAN Xiaoyuan ZHANG Xiaomei FENG Ziqi ZHANG Yue |
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| Affiliation: | 1. Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 300, Taiwan, ROC;2. Department of Electronics Engineering, National Chiao Tung University, Hsinchu 300, Taiwan, ROC |
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| Abstract: | First principle calculations have been performed to study the electron structures and magnetic properties of transition metal doped ruilles in order to predict room temperature diluted magnetic semiconductors. Different doping configurailons have been calculated to find the preferred doping site. The ground state energies of both FM and AFM states have been calculated to study the magnetic coupling between the dopants. The calculation results show the Co doped mutile has a Curie temperature of 1438 K. Co doped mille films have been prepared on Si substrate by magnetron sputtering. X-ray diffraction results show that the deposited film is ruille. Hysteresis loop curves measured by vibration sample magnetization show that the film is ferromagnetic at root temperature. |
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| Keywords: | diluted magnetic semiconductor titanium oxide first principle calculation magnetron sputtering |
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