EFFECTS OF FE AND ZN SUBSTITUTION UPON SUPERCONDUCTIVITY IN YBA2CU4O8

被引：59

作者：

FELNER, I

BROSH, B

机构：

[1] Racah Institute of Physics, Hebrew University of Jerusalem

来源：

PHYSICAL REVIEW B | 1991年 / 43卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.43.10364

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report experimental data about the influence of Fe and Zn substitution on the T(c) of YBa2Cu4O8. Dopant occupation sites have been found using Mossbauer spectroscopy for Fe and by x-ray diffraction for Zn. The Fe atoms were found to occupy the Cu(1) site predominantly at low concentration, whereas the Zn atoms possibly reside in the Cu(2) site. Both dopants suppress T(c) at the same rate of 23 K/at.% and this phenomenon is completely different from that observed in the YBa2Cu3O7 system.

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页码：10364 / 10367

页数：4

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