Shift of the surface-barrier part of the irreversibility line due to columnar defects in Bi2Sr2CaCu2O8 thin films

被引：1
作者：
Talanov, Y
Adrian, H
Basset, M
Jakob, G
Wirth, G
机构：
[1] Zavoisky Phys Tech Inst, Lab Adv Phys, Kazan 420029, Russia
[2] Univ Mainz, Inst Phys, D-55099 Mainz, Germany
[3] Gesell Schwerionenforsch mbH, D-64291 Darmstadt, Germany
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2004年 / 402卷 / 1-2期
基金：
俄罗斯基础研究基金会;
关键词：
vortex matter; columnar defects; bulk pinning; surface pinning; irreversibility line; microwave absorption; Bi2Sr2CaCu2O8; films;
D O I：
10.1016/j.physc.2003.09.068
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In the present work we report the results of studying the influence of the uranium-ion irradiation of the Bi2Sr2CaCu2O8 thin films on the high-temperature part (close to T-c) of their irreversibility line. We studied irreversible properties of the films by measuring the hysteresis of nonresonant microwave absorption. The results have revealed the shift of irreversibility line towards low-temperatures and magnetic fields. The effect is most significant for the films irradiated with large doses, B-phi > 1 T. This fact is in good agreement with the theoretical prediction by Koshelev and Vinokur of suppression of surface-barrier by columnar defects. (C) 2003 Elsevier B.V. All rights reserved.
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收藏
页码：114 / 118
页数：5
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