| 三元金属间化合物La3Cu3Bi4的合成、结构与性能研究 |
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| 引用本文： | 鲁玉明,范峰,蔡传兵,曹世勋,张金仓.三元金属间化合物La3Cu3Bi4的合成、结构与性能研究[J].上海大学学报(英文版),2008,12(6). |
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| 作者姓名： | 鲁玉明 范峰 蔡传兵 曹世勋 张金仓 |
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| 作者单位： | Department of Physics，College of Sciences，Shanghai University |
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| 摘 要： | The new intermetallic compound La3Cu3Bi4 was synthesized by arc melting method followed by annealing.The crystal structure refined using the Rietveld method and X-ray powder diffraction data showed to be Y3Au3Sb4 structure type with space group I43D(No.220).The unit cell parameters were a = 0.997 797(7) nm and V = 0.993 41(2) nm3.The structure was characterized by covalent Cu-Bi4 tetrahedron, which formed three-dimensional network by sharing corners and La atoms separated in the space of Cu-Bi4 tetragon.The expansion of La3Cu3Bi4 studied by using low temperature X-ray di?raction showed to be positive expansion and diminished with the temperature rising.
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Y3Au3Sb4 type structure La3Cu3Bi4: synthesis, structure and property |
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| LU Yu-ming,FAN Feng,CAI Chuan-bing,CAO Shi-xun,ZHANG Jin-chang.Y3Au3Sb4 type structure La3Cu3Bi4: synthesis, structure and property[J].Journal of Shanghai University(English Edition),2008,12(6). |
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| Authors: | LU Yu-ming FAN Feng CAI Chuan-bing CAO Shi-xun ZHANG Jin-chang |
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| Institution: | LU Yu-ming,FAN Feng,CAI Chuan-bing,CAO Shi-xun,ZHANG Jin-chang Department of Physics,College of Sciences,Shanghai University,Shanghai 200444,P.R.China |
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| Abstract: | The new intermetallic compound La3Cu3Bi4 was synthesized by arc melting method followed by annealing.The crystal structure refined using the Rietveld method and X-ray powder diffraction data showed to be Y3Au3Sb4 structure type with space group I43D(No.220).The unit cell parameters were a = 0.997 797(7) nm and V = 0.993 41(2) nm3.The structure was characterized by covalent Cu-Bi4 tetrahedron, which formed three-dimensional network by sharing corners and La atoms separated in the space of Cu-Bi4 tetragon.The expansion of La3Cu3Bi4 studied by using low temperature X-ray di?raction showed to be positive expansion and diminished with the temperature rising. |
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| Keywords: | rare earth copper bismuth intermetallics Rietveld method |
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