Rare earth ion size effects and enhanced critical current densities in Y2/3Sm1/3Ba2Cu3O7-x coated conductors -: art. no. 032505

被引：65
|
作者：
MacManus-Driscoll, JL [1 ]
Foltyn, SR
Maiorov, B
Jia, QX
Wang, H
Serquis, A
Civale, L
Lin, Y
Hawley, ME
Maley, MP
Peterson, DE
机构：
[1] Los Alamos Natl Lab, Superconductiv Technol Ctr, Los Alamos, NM 87545 USA
[2] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England
来源：
APPLIED PHYSICS LETTERS | 2005年 / 86卷 / 03期
关键词：
D O I：
10.1063/1.1851006
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The influence of rare earth (RE) ion size on critical current density (J(c)) in epitaxial films of superconducting REBa2CuO7-x was studied, where RE is the mixture of two or three rare earth ions. No systematic dependence of Jc on RE ion size was found. However, strongly enhanced critical current densities (J(c)'s) were found for the composition Y2/3SM1/3Ba2Cu3O7-x (YSmBCO). In similar to1-mum-thick films, J(c)'s as high as 4.7X 10(6) A cm(-2) (7.5.5 K, 0 T) and 1 X 10(4) A cm(-2) (75.5 K, 5 T) were obtained on single crystals and 6 X 104 A cm(-2) (75.5 K, 5 T) on buffered metal. The values are up to a factor of 3 higher than for comparative YBCO samples. (C) 2005 American Institute of Physics.
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页码：1 / 3
页数：3
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