Flux profiles in Bi2Sr2CaCu2O8 crystals containing columnar defects

被引：5

作者：

Konczykowski, M. ^{[1
]}

Majer, D. ^{[2
]}

Zeldov, E. ^{[2
]}

Chikumoto, N. ^{[1
,3
]}

Vinokur, V. M. ^{[4
]}

机构：

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

[2] Weizmann Inst Sci, IL-76100 Rehovot, Israel

[3] Univ Tokyo, Bunkyo Ku, Tokyo 113, Japan

[4] Argonne Natl Lab, Argonne, IL 60439 USA

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1994年 / 235-40卷

关键词：

D O I：

10.1016/0921-4534(94)91009-X

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The magnetic flux profiles in Bi2Sr2CaCu2O8 crystals containing columnar defects were measured using a Hall-sensor array placed on the sample surface. Double slope profiles with abrupt drop of persistent current J approximate to dB/dx above the matching field B-Phi were observed, in agreement with the predictions of the Bose-glass model (B-Phi is the field of complete filling of columnar defects by flux lines). Disapearence of this feature at 50-60K can be identified as crossing the depinning temperature T-dp.

引用

页码：2965 / 2966

页数：2

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