| 纳米晶CaV4O9的水热合成和磁性 |
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| 引用本文： | 桂宙,胡源,陈升忠,陈仙辉. 纳米晶CaV4O9的水热合成和磁性[J]. 中国有色金属学报, 2002, 12(5): 931-934 |
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| 作者姓名： | 桂宙 胡源 陈升忠 陈仙辉 |
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| 作者单位： | 1. 中国科学技术大学火灾科学国家重点实验室,合肥,230026
2. 中国科技大学物理系,合肥,230026 |
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| 基金项目： | 国家自然科学基金资助项目(50003008) |
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| 摘 要： | 采用水热技术合成了CaV4 O9纳米晶。还原水合肼对产物的形成起着关键作用。通过粉末X射线衍射谱 ,X射线光电子能谱 ,透射电子显微镜和X射线能量色散谱等分析方法表征了所合成CaV4 O9纳米晶的结构和组成。对其变温磁化率的测量表明产物具有二维量子自旋效应。讨论了化学条件的变化对合成产物的影响
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| 关 键 词： | CaV4O9 纳米结构 水热合成 磁化率 |
| 文章编号： | 1004-0609(2002)05-0931-04 |
| 修稿时间： | 2001-11-14 |
Hydrothermal synthesis and magnetic property of nanocrystalline CaV4O9 |
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| GUI Zhou ,HU Yuan ,CHEN Sheng-zhong ,CHEN Xian-hui. Hydrothermal synthesis and magnetic property of nanocrystalline CaV4O9[J]. The Chinese Journal of Nonferrous Metals, 2002, 12(5): 931-934 |
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| Authors: | GUI Zhou HU Yuan CHEN Sheng-zhong CHEN Xian-hui |
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| Affiliation: | GUI Zhou 1,HU Yuan 1,CHEN Sheng-zhong 1,CHEN Xian-hui 2 |
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| Abstract: | Nanocrystalline CaV 4O 9 has been synthesized by hydrothermal method. The reducing agent N 2H 4 plays a key role in the formation of the product. The sample has been characterized by means of X-ray powder diffraction, transmission electron microscopy, X-ray photoelectron spectra and X-ray energy dispersive spectroscopy techniques. The magnetic susceptibility measurements on the sample reflect the low dimensional nature of the spin system. The reaction details and features are described and discussed. |
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| Keywords: | CaV 4O 9 nanostructure hydrothermal synthesis magnetic properties |
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