INPLANE DISSIPATION MAXIMA AND VORTEX-LINE DISTORTIONS IN THE RESISTIVE TRANSITIONS OF OXYGEN-DOPED BI2SR2CACU2O8+DELTA SINGLE-CRYSTALS

被引：23

作者：

HSU, JWP

MITZI, DB

KAPITULNIK, A

机构：

[1] STANFORD UNIV,DEPT APPL PHYS,STANFORD,CA 94305

[2] NEC RES INST,PRINCETON,NJ 08540

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.67.2095

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Measurements of the in-plane resistive transition of Bi2Sr2CaCu2O8+delta single crystals in perpendicular magnetic fields reveal that in oxygen-reduced samples a giant resistance maximum evolves with field. This is not seen in oxygenated samples with similar metallic normal resistivities. As the peak resistivity may exceed the normal resistivity, it cannot arise from ordinary vortex-motion dissipation. We propose a model where the excess resistance results from nonrigid vortex motion coupling the out-of-plane dissipation to the in-plane resistance at temperatures where pinning effects are negligible. PACS numbers: 74.60.Ge

引用

页码：2095 / 2098

页数：4

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