NATURE OF THE IRREVERSIBILITY LINE IN BI2SR2CACU2O8

被引：137

作者：

ZELDOV, E

MAJER, D

KONCZYKOWSKI, M

LRKIN, AI

VINOKUR, VM

GESHKENBEIN, VB

CHIKUMOTO, N

SHTRIKMAN, H

机构：

[1] ECOLE POLYTECH, SOLIDES IRRADIES LAB, F-91128 PALAISEAU, FRANCE

[2] LD LANDAU THEORET PHYS INST, MOSCOW 117940, RUSSIA

[3] ARGONNE NATL LAB, ARGONNE, IL 60439 USA

[4] UNIV TOKYO, DEPT IND CHEM, TOKYO 113, JAPAN

来源：

EUROPHYSICS LETTERS | 1995年 / 30卷 / 06期

关键词：

D O I：

10.1209/0295-5075/30/6/009

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Local vortex dynamics in Bi2Sr2CaCu2O8 single crystals was studied using novel microscopic GaAs/AlGaAs Hall-sensor arrays. The irreversibility line (IL) is found to exist in the absence of bulk pinning. At high temperatures the IL is due to geometrical barriers whereas at intermediate temperatures the irreversible behavior is determined by surface barriers. Bulk pinning governs the IL only at T < 22 K.

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页码：367 / 372

页数：6

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