|本期目录/Table of Contents|

[1]邹以慧,李文丽,张〓岩,等. KCoF3的Rietveld法结构精修及电学性能研究[J].浙江理工大学学报,2013,30(01):119-123.
 ZOU Yi hui,LI Wen li,ZHANG Yan,et al. Rietveld Refinement and Electrical Property Research of KCoF3[J].Journal of Zhejiang Sci-Tech University,2013,30(01):119-123.
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 KCoF3的Rietveld法结构精修及电学性能研究()
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浙江理工大学学报[ISSN:1673-3851/CN:33-1338/TS]

卷:
第30卷
期数:
2013年01期
页码:
119-123
栏目:
生物与生命科学
出版日期:
2013-01-20

文章信息/Info

Title:
 Rietveld Refinement and Electrical Property Research of KCoF3
文章编号:
16733851 (2013) 01011905
作者:
 邹以慧1 李文丽1 张〓岩1 王顺利1 李培刚1 唐为华12
 1. 浙江理工大学物理系光电材料与器件中心, 杭州 310018; 2. 北京邮电大学理学院, 北京 100876
Author(s):
 ZOU Yihui1 LI Wenli1 ZHANG Yan1 WANG Shunli1 LI Peigang1 TANG Weihua12
 1. Department of physics, Center for Optoelectronics Materials and Devices, Zhejiang SciTechUniversity, Hangzhou 310018, China; 2. School of Sciences, Beijing University of Postsand Telecommunications, Beijing 100876, China
关键词:
 KCoF3 Rietveld方法 自旋态 超交换作用
分类号:
O472;O722
文献标志码:
A
摘要:
    利用简单的液相合成方法,在室温条件下制备了KCoF3粉末状产物。通过X射线粉末衍射(XRD)和扫描电镜(SEM)对其物相结构和形貌进行了表征,结果表明:KCoF3是一种ABC3型的钙钛矿结构,属于立方晶系,空间群为pm3m[221]。利用Rietveld粉末衍射峰形拟合方法对化合物KCoF3的X射线粉末衍射数据进行分析,并对其结构进行精修,表明其晶格常数为a=4.076(2),晶胞体积为67.727(7)3,每个单胞含1个化学式(Z=1),计算密度为Dc=3.812(1) g/cm3。而对KCoF3电学性能的研究表明,在273 K附近存在Co原子自旋态的改变,高自旋态向低自旋态的变化影响了Co原子间的超交换作用,进而影响了电输运行为。
〖HTH〗关键词: 〖HTK〗KCoF3; Rietveld方法; 自旋态; 超交换作用

参考文献/References:

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备注/Memo

备注/Memo:
 收稿日期: 2011-10-16
基金项目: 国家自然科学基金项目(60806045,51072182),浙江省自然科学基金项目(Y1110519)
作者简介: 邹以慧(1986-),男,河南信阳人,硕士研究生,主要从事无机功能材料合成及表征的研究。
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