| FeTe合金结构分析及其薄膜制备 |
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| 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 |
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| 作者姓名： | 张鲁山 于洪飞 郭永权 |
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| 作者单位： | 华北电力大学能源动力与机械工程学院, 北京 102206 |
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| 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
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| 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 |
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| 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 |
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| Authors: | Zhang Lu-Shan Yu Hong-Fei Guo Yong-Quan |
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| 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 |
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| 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. |
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| Keywords: | FeTe Rietveld refinement superconducting films |
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