OBSERVATION OF VORTEX-GLASS-TO-LIQUID TRANSITION IN THE HIGH-T(C) SUPERCONDUCTOR BI2SR2CA2CU3O10

被引：73

作者：

LI, Q

WIESMANN, HJ

SUENAGA, M

MOTOWIDLOW, L

HALDAR, P

机构：

[1] IGC,ADV SUPERCOND INC,WATERBURY,CT 06704

[2] INTERMAGNET GEN CORP,GUILDERLAND,NY 12084

来源：

PHYSICAL REVIEW B | 1994年 / 50卷 / 06期

关键词：

D O I：

10.1103/PhysRevB.50.4256

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report a series of measurements of I-V curves for a c-axis-oriented Bi2Sr2Ca2Cu3O10/Ag tape immersed in liquid oxygen. By applying the critical scaling analysis to the I-V characteristics measured in various magnetic fields, a vortex-glass-liquid phase-transition line was identified in the mixed state of this system for H less-than-or-equal-to 1.2 T, with critical exponents nu = 1.25 +/- 0.15 and z = 8.5 +/- 1.5. We also show that this transition boundary in the H-T plane defines the upper limit of useful current carrying capacities for the Bi2Sr2Ca2Cu3O10/Ag tapes at a given temperature and magnetic field.

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页码：4256 / 4259

页数：4

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