ANOMALOUS PEAK EFFECT IN SINGLE-CRYSTAL BI2SR2CACU2O8+Y STUDIED BY HALL PROBE MAGNETOMETRY

被引：196

作者：

TAMEGAI, T

IYE, Y

OGURO, I

KISHIO, K

机构：

[1] UNIV TOKYO,INST SOLID STATE PHYS,MINATO KU,TOKYO 106,JAPAN

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

来源：

PHYSICA C | 1993年 / 213卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(93)90755-F

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have studied an anomalous peak effect in a Bi2Sr2CaCu2O8+y single crystal using a specially designed Hall probe magnetometer. In order to investigate the origin of the anomalous peak effect which manifests itself in the magnetic hysteresis loop, the relaxation (10(-2) S < t < 10(4) s), and the local field imaging experiments were performed. Decoupling of 2D vortices in neighboring CuO layers, namely, a dimensional crossover in the pinning mechanism, is proposed as a possible mechanism of the peak effect.

引用

页码：33 / 42

页数：10

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