A MU+SR STUDY OF THE EFFECT OF SULFUR SUBSTITUTION IN GRANULAR YBA2CU3O6.6

被引：1

作者：

CLOOTS, R

ANSALDO, EJ

AUSLOOS, M

机构：

[1] UNIV LIEGE,INST PHYS B5,SUPRAS,B-4000 LIEGE,BELGIUM

[2] UNIV SASKATCHEWAN,DEPT PHYS,SASKATOON S7N 0W0,SASKATCHEWAN,CANADA

来源：

PHYSICA C | 1994年 / 221卷 / 1-2期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/0921-4534(94)90671-8

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effect of sulphur substitution in YBCO, which results in the recently discovered amorphous layer of YBCO-S between YBCO grains, was studied with mu+ spin rotation/relaxation techniques in zero and applied magnetic fields. It was found that the new phase acts as a magnetic impurity. Sulphur substitution increases the penetration depth in the bulk of the grains (lambda(0) = 290 nm), and a reduced superconductivity percolation effect is obtained. The role and location of sulphur is discussed in view of recent electron microscopy and X-ray emission spectroscopy results on the same samples.

引用

页码：104 / 108

页数：5

共 27 条

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