EFFECT OF NB DOPING ON PROPERTIES OF Y-BA-CU CERAMICS

被引：14
|
作者：
STRUKOVA, GK
SMIRNOVA, IS
SHEVCHENKO, SA
KOLYUBAKIN, AI
ZVERKOVA, II
SEDYKH, V
POLYANSKII, AA
DOROSINSKII, LA
SHEKHTMAN, VS
机构：
[1] Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, 142432, Moscow district
来源：
SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 1993年 / 6卷 / 08期
关键词：
D O I：
10.1088/0953-2048/6/8/006
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The properties of Nb-doped YBa2Cu3Oy ceramics obtained by thermolysis of the oxide or nitrate (Y, Ba, Cu) solution in ammonium nitrate melt were studied. For the composition YBa2Cu3-xNb0.05O6.6, T(c) = 92 K and the transport critical current J(c) = 1000-4000 A cm-2 were obtained. The magnetic flux profile was studied by a magneto-optic method at B = 290 G. Domains of size 200-600 mum were found with magnetic critical current J(c)m = 2 x 10(4) A cm-2 at 77 K and 10(5) cm-2 at 11 K.
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页码：589 / 592
页数：4
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