首页 | 本学科首页   官方微博 | 高级检索  
     

FeTe合金结构分析及其薄膜制备
引用本文:张鲁山,于洪飞,郭永权. FeTe合金结构分析及其薄膜制备[J]. 物理学报, 2012, 61(1): 16101-016101. DOI: 10.7498/aps.61.016101
作者姓名:张鲁山  于洪飞  郭永权
作者单位:华北电力大学能源动力与机械工程学院, 北京 102206
摘    要:利用固态反应法制备了名义成分为FeTe的合金, 采用X射线粉末衍射技术和Rietveld全谱拟合分析方法测定了其相组成和晶体结构. 研究表明,主相为Fe1.08Te,空间群为P4/nmm,点阵参数 a = 3.8214(3) Å, c = 6.2875(3) Å, Z = 2, Fe原子占据2a和2c晶位, Te原子占据2c晶位. 利用脉冲激光沉积技术制备的FeTe薄膜超导转变起始温度为13.2 K,零电阻温度为9.8 K.关键词:FeTeRietveld结构精修超导薄膜

关 键 词:FeTe  Rietveld结构精修  超导薄膜
收稿时间:2011-03-18

Structural analysis of FeTe alloy and its superconducting film preparation
Zhang Lu-Shan,Yu Hong-Fei and Guo Yong-Quan. Structural analysis of FeTe alloy and its superconducting film preparation[J]. Acta Physica Sinica, 2012, 61(1): 16101-016101. DOI: 10.7498/aps.61.016101
Authors:Zhang Lu-Shan  Yu Hong-Fei  Guo Yong-Quan
Affiliation:School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China;School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China;School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China
Abstract:The vacuum sintered alloy with nominal composition of FeTe was analyzed using powder X-ray diffraction and refined with Rietveld method. It is shown that FeTe alloy crystallizes a tetragonal structure with space group of P/4nmm and its lattice constant is a = 3.8214(3)Å, c = 6.2875(3) Å, Z = 2. Fe at 2a and 2c positions and Te at 2c positions. FeTe films prepared by pulsed laser deposition showed superconducting transition with starting transition temperature Tc,onset of 13.2 K and Tc,0 of 9.8 K.
Keywords:FeTe  Rietveld refinement  superconducting films
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《物理学报》浏览原始摘要信息
点击此处可从《物理学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号