| Y-Ba-Cu-O掺Ce体系的激光喇曼光谱 |
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| 引用本文： | 许存义,石磊,左健,庞文华,张裕恒.Y-Ba-Cu-O掺Ce体系的激光喇曼光谱[J].物理学报,1996,45(5):893-896. |
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| 作者姓名： | 许存义 石磊 左健 庞文华 张裕恒 |
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| 作者单位： | 中国科学技术大学结构分析开放研究实验室,合肥230026 |
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| 摘 要： | 利用激光喇曼光谱分析了名义组分为(Y1-xCex)Ba2Cu3O7-δ(x=0,0.05,0.1,0.3,0.55,1.0)的系列样品的相组成,发现随着Ce的掺入,样品中除生成正交Y(123)相材料以外,还生成BaCeO3和BaCuO2等杂相。结果表明,Ce很可能根本没有替代Y生成Ce(123)相,而是和Ba生成了BaCeO3杂质相
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| 关 键 词： | YBCO 超导体 掺铯 激光喇曼谱 |
| 收稿时间： | 1995-02-20 |
STUDY ON THE RAMAN SPECTRUM OF Ce-DOPED Y-Ba-Cu-O SYSTEM |
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| XU CUN-YI,SHI LEI,ZUO JIAN,PANG WEN-HUA and ZHANG YU-HENG.STUDY ON THE RAMAN SPECTRUM OF Ce-DOPED Y-Ba-Cu-O SYSTEM[J].Acta Physica Sinica,1996,45(5):893-896. |
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| Authors: | XU CUN-YI SHI LEI ZUO JIAN PANG WEN-HUA and ZHANG YU-HENG |
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| Abstract: | The phase formation of the samples with the norminal composition (Y1-xCex)Ba2Cu3O7-δ(x = 0,0.05,0.1, 0.3, 0.55,1.0)has been studied by Raman spectroscopy. It is found that the impurity phases of BaCeO3 and BaCuO2 have been formed with Ce doping, besides the orthorhombic Y-123 phase. The results suggest that Ce element may not substitute for Y element to form a Ce-123 phase. Moreover, Ce element formed an impurity phase BaCeO3 with Ba. |
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