Do columnar defects produce bulk pinning?

被引：32

作者：

Indenbom, MV ^{[1
]}

van der Beek, CJ

Konczykowski, M

Holtzberg, F

机构：

[1] Ecole Polytech, Solides Irradies Lab, F-91128 Palaiseau, France

[2] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Moscow District, Russia

[3] IBM Corp, Thomas J Watson Res Ctr, Yorktown Hts, NY 10598 USA

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.84.1792

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

From magneto-optical imaging performed on heavy-ion-irradiated YBa2Cu3O7-delta single crystals, it is found that at fields and temperatures where strong single vortex Dinning by individual irradiation-induced amorphous columnar defects is to be expected, vortex motion is limited by the nucleation of vortex kinks at the specimen surface. In the material bulk, vortex motion occurs through (easy) kink sliding. Depinning in the bulk determines the screening current only at fields comparable to or larger than the matching field, at which the majority of vortices is not trapped by an ion track.

引用

页码：1792 / 1795

页数：4

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