LARGE CRITICAL-CURRENT DENSITY IN NEUTRON-IRRADIATED POLYCRYSTALLINE HGBA2CUO4+DELTA

被引：26

作者：

SCHWARTZ, J

NAKAMAE, S

RABAN, GW

HEUER, JK

WU, S

WAGNER, JL

HINKS, DG

机构：

[1] UNIV ILLINOIS,DEPT NUCL ENGN,URBANA,IL 61801

[2] UNIV ILLINOIS,DEPT MAT SCI & ENGN,URBANA,IL 61801

[3] ARGONNE NATL LAB,SCI & TECHNOL CTR SUPERCOND,DIV MAT SCI,ARGONNE,IL 60439

来源：

PHYSICAL REVIEW B | 1993年 / 48卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.48.9932

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effects of neutron irradiation on the superconducting properties of HgBa2CuO4+delta are reported. Enhancements in the magnetization critical current density (J(c)), as calculated by the Bean model, vary with magnetic field and temperature and range from 1-2 orders of magnitude. Large values (J(c) > 10(4) A/cm2) are obtained above (0.5 T, 77 K) and (3 T, 50 K) after irradiation. A large shift in the irreversibility line toward higher field and temperature is also reported. These results demonstrate that HgBa2CuO4+delta is not intrinsically limited to low current density and may become a technologically important compound.

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页码：9932 / 9934

页数：3

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