VORTEX CONFIGURATION AND DYNAMICS IN BI2SR1.8CACU2OX THIN-FILMS BY LORENTZ MICROSCOPY

被引：89

作者：

HARADA, K ^{[1
]}

MATSUDA, T ^{[1
]}

KASAI, H ^{[1
]}

BONEVICH, JE ^{[1
]}

YOSHIDA, T ^{[1
]}

KAWABE, U ^{[1
]}

TONOMURA, A ^{[1
]}

机构：

[1] HITACHI LTD,CENT RES LAB,KOKUBUNJI,TOKYO 185,JAPAN

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.71.3371

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Vortices in Bi2Sr1.8CaCu2Ox thin films were directly observed by Lorentz microscopy as the sample temperature T was raised from 4.5 K under fixed magnetic fields H. Each time T was raised, vortices moved, eventually to settle in a new static configuration. Vortices began to form a regular lattice at a temperature depending on H. The vortex-lattice image remained visible until it gradually faded away around an irreversibility temperature T*(H). Careful examination of the disappearance temperature indicates that the vortex lattice may persist up to some temperature above T*(H).

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页码：3371 / 3374

页数：4

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