Tuning the peak effect in the Y1-xNdxBa2Cu3O7-δ compound

被引：10
|
作者：
Gokhfeld, D. M. [1 ]
Balaev, D. A. [1 ,2 ]
Yakimov, I. S. [2 ]
Petrov, M. I. [1 ]
Semenov, S. V. [1 ,2 ]
机构：
[1] Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Akademgorodok 50, Krasnoyarsk 660036, Russia
[2] Siberian Fed Univ, Krasnoyarsk 660041, Russia
来源：
CERAMICS INTERNATIONAL | 2017年 / 43卷 / 13期
基金：
俄罗斯基础研究基金会;
关键词：
Peak effect; Bulk superconductors; Critical current; Pinning; Characterization; YBCO; BA-CU-O; SUPERCONDUCTOR; MAGNETIZATION; DEPENDENCE; TRANSPORT; BEHAVIOR; CRYSTAL; YTTRIUM; GROWTH; PHASE;
D O I：
10.1016/j.ceramint.2017.05.011
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Polycrystalline Y1-xNdxBa2Cu3O7-delta (x=0.02, 0.11, and 0.25) superconductors are synthesized. Nd atoms are uniformly distributed over grains. The magnetization loops of the samples have a pronounced second peak in a wide temperature range. The magnetization data are analyzed using the extended critical state model. It is found that the order-disorder transition of the vortex lattice is affected by doping with neodymium and temperature; the second-peak field and width decrease monotonically with increasing x value. The undoped polycrystalline YBa2Cu3O7-delta compound is assumed to exhibit the peak effect in higher magnetic fields.
引用
收藏
页码：9985 / 9991
页数：7
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