| Fe掺杂ZnO稀磁半导体的结构与磁性 |
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| 引用本文： | 刘惠莲,张永军,王雅新,魏茂斌,杨景海.Fe掺杂ZnO稀磁半导体的结构与磁性[J].吉林大学学报(理学版),2009,47(6):1282-1286. |
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| 作者姓名： | 刘惠莲 张永军 王雅新 魏茂斌 杨景海 |
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| 作者单位： | 1. 吉林师范大学 物理学院, 吉林 四平 ,136000,2. 中国科学院 长春光学机械与物理研究所激发态重点实验室, ,长春 130033;
3. 中国科学院 研究生院, 北京 100049 |
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| 摘 要： | 以Fe(NO3)3·9H2O与Zn(NO3)2·6H2O为原料, 与适量的柠檬酸配制成溶液, 采用溶胶\|凝胶(so|-gel)法合成干凝胶前驱体, 将前驱体在空气及氩气气氛中烧结得到Zn1-xFexO样品, 并用X射线衍射（XRD)、 透射电子显微镜（TEM）、 X射线光电子能谱（XPS）和振动样品磁强计（VSM）对所制备样品的结构和磁性进行研究. 结果表明, 在氩气中烧结时, Fe在ZnO中的掺杂摩尔分数小于4％, 在空气中烧结时, Fe在ZnO中的掺杂摩尔分数约为10％, 在两种气氛下制备相同掺杂摩尔分数样品的磁性不同, 是由于Fe在样品中所处的价态不同, 从而影响了样品的结构及磁性.
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| 关 键 词： | 稀磁半导体 Fe掺杂ZnO 溶胶-凝胶法 |
| 收稿时间： | 2008-11-26 |
Structure and Magnetic Properties of Fe-Doped ZnO Dilute Magnetic Semiconductors |
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| LIU Hui-lian,ZHANG Yong-jun,WANG Ya-xin,WEI Mao-bin,YANG Jing-hai.Structure and Magnetic Properties of Fe-Doped ZnO Dilute Magnetic Semiconductors[J].Journal of Jilin University: Sci Ed,2009,47(6):1282-1286. |
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| Authors: | LIU Hui-lian ZHANG Yong-jun WANG Ya-xin WEI Mao-bin YANG Jing-hai |
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| Institution: | 1. College of Physics, Jilin Normal University, Siping 136000, Jilin Province, China;2. Key Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, |China|3. Graduate University of |Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | The dry gel precursors were synthesized from Zn nitrate and Fe nitrate with a citric acid solution by means of sol-gel method. We obtained a series of Zn_(1-x)Fe_xO after the precursors were sintered in air and in argon. The structure and magnetic properties of Zn_(1-x)Fe_xO were characterized by virtue of X-ray diffractometer (XRD), transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS) and vibration sample magnetometer (VSM). The results show that the doping concentration of Fe in ZnO sintered in air is less than 4% , while sintering in argon, the doping concentration of Fe in ZnO is close to 10%. The magnetic performance of sample with the same doping concentration prepared in two gas atmospheres was different. XPS analysis shows that Fe existed in different valences in samples prepared in different sintering atmospheres so as to affect the structure and. Magnetic performance of samples. |
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| Keywords: | diluted magnetic semiconductors Fe doped ZnO sol-gel method |
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