Effects of heavy-ion irradiation on the vortex state in Ba(Fe1-xCox)2As2

被引：1

作者：

Tamegai, T. ^{[1
,2
]}

Tsuchiya, Y. ^{[1
]}

Taen, T. ^{[1
]}

Nakajima, Y. ^{[1
,2
]}

Okayasu, S. ^{[3
]}

Sasase, M. ^{[4
]}

机构：

[1] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan

[2] Transformat Res Project Iron Pnictides TRIP, JST, Bunkyo Ku, Tokyo 1138656, Japan

[3] Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan

[4] Wakasa Wan Energy Res Ctr, Res & Dev Grp, Fukui 9140192, Japan

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2010年 / 470卷

关键词：

Ba(Fe1-xCox)(2)As-2; Columnar defects; Heavy-ion irradiation; COLUMNAR DEFECTS;

D O I：

10.1016/j.physc.2009.11.051

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report effects of heavy-ion irradiation in Ba(Fe1-xCox)(2)As-2 single crystals. The columnar defects with about 40% of the irradiation dose are confirmed by transmission electron microscopy. Magneto-optical imaging and bulk magnetization measurements reveal strong enhancement of the critical current density in the irradiated region. The vortex creep rate is also strongly suppressed by the columnar defects. Effects of heavy-ion irradiation into Ba(Fe1-xCox)(2)As-2 and cuprate superconductors are compared. (C) 2009 Elsevier B.V. All rights reserved.

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页码：S360 / S362

页数：3

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