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Y-Ba-Cu-O掺Ce体系的激光喇曼光谱

物理学报, 1996, 45(5): 893-896.
DOI: 10.7498/aps.45.893
CSTR: 32037.14.aps.45.893

STUDY ON THE RAMAN SPECTRUM OF Ce-DOPED Y-Ba-Cu-O SYSTEM

Acta Phys. Sin., 1996, 45(5): 893-896.
DOI: 10.7498/aps.45.893
CSTR: 32037.14.aps.45.893
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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

     

    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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