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
收藏
页码：104 / 108
页数：5
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