Synthesis of New Pb-Based 1232 Cuprate Containing Boron in the (Pb0.5B0.5) Sr2(Er3−x−yCexSry)Cu2Oz System

被引：0
|
作者：
Hiroyuki Sasakura
Yoshiya Akagi
Masashi Tanaka
Shigeki Tsukui
Motoaki Adachi
机构：
[1] Hamamatsu University School of Medicine,Department of Physics
[2] Shizuoka University,Department of Physics
[3] Osaka Prefecture University,Department of Chemical Engineering, Graduate School of Engineering
来源：
Journal of Superconductivity and Novel Magnetism | 2010年 / 23卷
关键词：
New Pb-based cuprate; 1232 phase; (Pb; B; )Sr; (Er; Ce; Sr; )Cu; O; system; Superconductivity;
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学科分类号：
摘要：
New Pb-based layered cuprates containing boron with the 1232 structure have been synthesized in the (Pb0.5B0.5)Sr2(Er3−x−yCexSry)Cu2Oz system. Nearly the single 1232 phase samples are obtained for the nominal composition of 1.6≤x≤1.9 and y=0.2. A sample with the composition of (Pb0.5B0.5)Sr2(Er1.2Ce1.6Sr0.2)Cu2Oz shows resistivity-dropping phenomenon below 10 K and it shows a diamagnetic signal at about 9.0 K, though the superconducting volume fraction is very small. From these results, the sample may well be a new Pb-based superconductor with the 1232 structure.
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页码：1381 / 1384
页数：3
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