Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第12卷    第5期    总第50期    2002年10月

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文章编号:1004-0609(2002)05-0931-04
纳米晶CaV4O9的水热合成和磁性
桂 宙1,胡源1,陈升忠1,陈仙辉2

(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
)

摘 要: 采用水热技术合成了CaV4O9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CaV4O9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。

 

关键字: CaV4O9;纳米结构;水热合成;磁化率

Hydrothermal synthesis and 
magnetic property of 
nanocrystalline CaV4O9
GUI Zhou1, HU Yuan1,
 CHEN Sheng-zhong1, CHEN Xian-hui2

1. State Key Laboratory of Fire Science, 
University of Science and Technology of China,
 Hefei 230026, China;
2. Department of Physics, University of Science and
 Technology of China, Hefei 230026, China

Abstract:Nanocrystalline CaV4O9 has been synthesized by hydrothermal method. The reducing agent N2H4 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.

 

Key words: CaV4O9; nanostructure; hydrothermal synthesis; magnetic properties

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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