| 真空退火处理对纳米氮化硅电子自旋共振谱的影响 |
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| 引用本文： | 洪军,何艳阳,钟韶,张海燕,薛新民,周纯,陈进,陈易明.真空退火处理对纳米氮化硅电子自旋共振谱的影响[J].人工晶体学报,2005,34(4):744-747. |
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| 作者姓名： | 洪军 何艳阳 钟韶 张海燕 薛新民 周纯 陈进 陈易明 |
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| 作者单位： | 广东工业大学应用物理学院,广州,510090;广东工业大学实验中心,广州,510090;广东工业大学材料与能源学院,广州,510090 |
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| 基金项目： | 国家自然科学基金（No.20271014,No.50372013）;广东省自然科学基金（No.036918）;广东省科技计划（No.2002C1030506） |
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| 摘 要： | 用微米级SiO2、Si和碳黑混合粉末为原料, 以氮气为反应气,采用碳热还原法合成了氮化硅纳米粉体.测量了300～1273K退火温度下纳米氮化硅的电子自旋共振(ESR)谱,研究了测量温度、纳米氮化硅退火温度对ESR谱线型、g因子、线宽的影响.结果证实退火影响纳米氮化硅的磁性.
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| 关 键 词： | 纳米氮化硅 电子自旋共振 碳还原 退火 |
| 文章编号： | 1000-985X（2005）04-0744-04 |
| 收稿时间： | 12 30 2004 12:00AM |
| 修稿时间： | 2004-12-30 |
Effect of Vacuum Annealing on the Electron Spin Resonance of Si3N4 Nanoparticles |
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| HONG Jun,HE Yan-Yang,ZHONG Shao,ZHANG Hai-yan,XUE Xin-Min,ZHOU Chun,CHEN Jin,CHEN Yi-ming.Effect of Vacuum Annealing on the Electron Spin Resonance of Si3N4 Nanoparticles[J].Journal of Synthetic Crystals,2005,34(4):744-747. |
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| Authors: | HONG Jun HE Yan-Yang ZHONG Shao ZHANG Hai-yan XUE Xin-Min ZHOU Chun CHEN Jin CHEN Yi-ming |
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| Abstract: | Si_3N_4 nanoparticles were synthesized by chemical vapor deposition(CVD) using Si, SiO_2 and C micro-particles as a raw material. The electron spin resonance (ESR) spectra of Si_3N_4 nanoparticles prepared at different temperature annealing from 300 to 1273K were measured. The effect of the measuring temperature and annealing temperature on the ESR line shape, g-value and linewidth of the Si_3N_4 nanoparticles was investigated. The results prove that the annealing has an effect on the magnetic properties of Si_3N_4 nanoparticles. |
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| Keywords: | Si3N4 nanoparticle electron spin resonance carbon reduction annealing |
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