Vortex-state resistance near parallel orientation in layered superconductors

被引：24

作者：

Chaparala, M

Chung, OH

Ren, ZF

White, M

Coppens, P

Wang, JH

Hope, AP

Naughton, MJ

机构：

[1] SUNCHON NATL UNIV, DEPT PHYS, SUNCHON 540742, SOUTH KOREA

[2] SUNY BUFFALO, DEPT CHEM, BUFFALO, NY 14260 USA

[3] SUNY BUFFALO, DEPT PHYS, BUFFALO, NY 14260 USA

来源：

PHYSICAL REVIEW B | 1996年 / 53卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.53.5818

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Angular studies of in-plane resistivity in the mixed-state of layered superconductors reveal a local maximum for magnetic field oriented parallel to the quasi-two-dimensional layers. The peak is observed in single crystals of Tl2Ba2CaCu2O8, TlBa2Ca2Cu3O10,Bi2Sr2CaCu2O8, and (BEDT-TTF)(2)Cu(NCS)(2), and so appears to be a general phenomenon of layered superconductors. Attendant with this peak is a local minimum in the critical current density at the parallel orientation. Weak interlayer coupling and fluctuations are suggested to provide for the nucleation of noninteracting point vortices with free in-plane motion in the parallel field, yielding excess dissipation.

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收藏

页码：5818 / 5825

页数：8

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