Effect of damage morphology on the pinning and vortex dynamics in Bi2Sr2CaCu2O8+δ irradiated with GeV heavy ions

被引：0
|
作者：
Kuroda, N
Ishikawa, N
Chimi, Y
Iwase, A
Okayasu, S
Ikeda, H
Yoshizaki, R
Kambara, T
机构：
[1] Japan Atom Energy Res Inst, Dept Mat Sci, Naka, Ibaraki 3191195, Japan
[2] Univ Tsukuba, Cryogen Ctr, Tsukuba, Ibaraki 3058577, Japan
[3] Inst Phys & Chem Res, Wako, Saitama 3510198, Japan
来源：
PHYSICA B | 2000年 / 284卷
关键词：
AC susceptibility; irradiation; Bi-2212; magnetization; swift heavy-ion irradiation; vortex dynamics; vortex pinning;
D O I：
10.1016/S0921-4526(99)02157-2
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Bi2Sr2CaCu2O8+delta (Bi-2212) single crystals have been irradiated with swift heavy ions: 0.7 GeV Kr-84, 3.8 GeV Ta-181 and 3.1 GeV Bi-209. The critical current density, J(c), deduced from the DC magnetization measurement tends to increase with the size of columnar defects. The Bose-glass behavior is observed in vortex dynamics for 3.8 GeV Ta-181 or 3.1 GeV Bi-209 ion irradiation. For Kr irradiation, however, a deviation from the Bose-glass behavior occurs. Effects of damage morphology on the pinning and vortex dynamics are discussed. (C) 2000 Elsevier Science B.V. All rights reserved.
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收藏
页码：847 / 848
页数：2
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