节点文献
YBa2(Cu3-x,Snx)O7-δ的穆斯堡尔谱学研究
MOSSBAUER SPECTROSCOPY STUDIES FOR YBa2(Cu3-x,Snx)O7-δ
【摘要】 本文用119Sn穆斯堡尔谱学的方法研究了高Tc超导材料YBa2(Cu3-x,Snx)O7-89在置换元素Sn为大置换量的情况,发现一直到x=1.0,仍有Tc>80K。通过穆斯堡尔谱的分析,认为Sn置换的是Cu(1)晶位上的离子,从而得出对超导起决定性作用的是Cu(2)晶位离子的结论。
【Abstract】 The high Tc superconducting material YBAa2 (Cu1-x, Snx)O7_δ with large content of substitution element was studied by using 119Sn Mossbauer spectroscopy. The work shows rhat with the content of substitution element up to x = 1.0, Tc is still higher than 80 K. The analysis for Mossbauer spectrum have revealed that Sn ions substitute for ions at Cu(l) site in YBa2Cu3O7-δ. So that lead us to conclude that ions at Cu(2) site appear to piay decisive role for superconductivity.
- 【文献出处】 物理学报 ,Acta Physica Sinica , 编辑部邮箱 ,1990年07期
- 【被引频次】2
- 【下载频次】14