Angular-dependent vortex pinning mechanisms in YBa2Cu3O7 coated conductors and thin films

被引：241

作者：

Civale, L ^{[1
]}

Maiorov, B ^{[1
]}

Serquis, A ^{[1
]}

Willis, JO ^{[1
]}

Coulter, JY ^{[1
]}

Wang, H ^{[1
]}

Jia, QX ^{[1
]}

Arendt, PN ^{[1
]}

MacManus-Driscoll, JL ^{[1
]}

Maley, MP ^{[1
]}

Foltyn, SR ^{[1
]}

机构：

[1] Los Alamos Natl Lab, Superconduct Technol Ctr, Los Alamos, NM 87545 USA

来源：

APPLIED PHYSICS LETTERS | 2004年 / 84卷 / 12期

关键词：

D O I：

10.1063/1.1655707

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We compare the angular-dependent critical current density (J(c)) in YBa2Cu3O7 films deposited on MgO templates grown by ion-beam-assisted deposition (IBAD), and on single-crystal substrates. We identify three angular regimes in which pinning is dominated by different types of correlated and uncorrelated defects. Those regimes are present in all cases, but their extension and characteristics are sample dependent, reflecting differences in texture and defect density. The more defective nature of the films on IBAD turns into an advantage as it results in higher J(c), demonstrating that the performance of the films on single crystals is not an upper limit for the IBAD coated conductors. (C) 2004 American Institute of Physics.

引用

页码：2121 / 2123

页数：3

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