SIZE EFFECT IN THE VORTEX-GLASS TRANSITION IN SUBMICRON YBA2CU3OY STRIPS - EVIDENCE FOR SOFTENING OF VORTEX MATTER

被引：58

作者：

ANDO, Y

KUBOTA, H

TANAKA, S

机构：

[1] Superconductivity Research Laboratory, International Superconductivity Technology Center, Koto-ku Tokyo 135

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.69.2851

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The I-V curves of YBa2Cu3Oy strips, with widths of 0.54 to 5.6 mum, were measured in magnetic fields. All the strips showed critical scaling behavior, and a clear decrease in the vortex-glass (VG) transition temperature with decreasing width was observed. This finding proves that the interaction range of vortices is relevant in characterizing the phase transition, and that softening of the vortex-matter elasticity occurs upon approaching this scale. Moreover, the results are not easily explained by the flux-creep picture and give strong support to the VG picture.

引用

页码：2851 / 2854

页数：4

共 14 条

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