VORTEX CHANNELING ALONG TWIN PLANES IN YBA2CU3O7-X

被引：95

作者：

OUSSENA, M ^{[1
]}

DEGROOT, PAJ ^{[1
]}

PORTER, SJ ^{[1
]}

GAGNON, R ^{[1
]}

TAILLEFER, L ^{[1
]}

机构：

[1] MCGILL UNIV,DEPT PHYS,MONTREAL,PQ H3A 2T8,CANADA

来源：

PHYSICAL REVIEW B | 1995年 / 51卷 / 02期

关键词：

D O I：

10.1103/PhysRevB.51.1389

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have studied the magnetic hysteresis of twinned and detwinned YBa2Cu3O7-x single crystals. Our results show that channeling of vortices occurs and that it decreases vortex pinning in the field region near the peak in the hysteresis width. We demonstrate that the effect of the twin planes cannot simply be described in terms of enhanced pinning within the twin planes. By varying the angle of the twin planes with the magnetic field we have found that vortices lock in to the twin planes and an upper bound on the lock-in angle of 3.5°at 60 K has been obtained. © 1995 The American Physical Society.

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页码：1389 / 1392

页数：4

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