Structure and Diamagnetic Properties of (Pb0.6SnyCu0.4 − y)Sr2(Y1 − xCax)Cu2Oz

被引：0
|
作者：
N. Balchev
K. Nenkov
B. Kunev
A. Souleva
Ts. Tsacheva
S. Hoste
机构：
[1] Institute of Solid State Physics,Bulgarian Academy of Sciences
[2] Institut fur Festkorper und Werkstofforschung,Bulgarian Academy of Sciences
[3] International Laboratory of High Magnetic Fields and Low Temperatures,Institute of Physical Chemistry
[4] Institute of Catalysis,Department of Inorganic and Physical Chemistry
[5] University of Chemical Technology and Metallurgy,undefined
[6] Bulgarian Academy of Sciences,undefined
[7] University of Ghent,undefined
来源：
Journal of Superconductivity | 2001年 / 14卷
关键词：
(Pb,Cu)-1212 phase; Sn doping; diamagnetic properties;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The effect of Sn doping in (Pb0.6SnyCu0.4 − y)Sr2(Y1 − xCax)Cu2Oz with 0 ≤ y ≤ 0.3 and 0 ≤ x ≤ 0.7 was investigated. It was established that a nearly pure 1212 phase can be obtained at 0 ≤ y ≤ 0.1 and 0 ≤ x ≤ 0.3. The obtained XRD patterns as well as the results of the EDX and ICP-AES analyses showed that Sn substitution is possible in the (Pb,Cu)-1212 phase. Superconductivity was observed at 0.4 ≤ x ≤ 0.7. The onset of the diamagnetic transitions varied from 10 to 30 K. The influence of the strong Pb deficiency on the superconducting properties of the samples was discussed.
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页码：713 / 717
页数：4
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