ENHANCEMENT OF TRANSPORT CRITICAL-CURRENT DENSITIES IN (BI,PB)2SR2CA2CU3O10AG TAPES AT 77-K FOLLOWING FAST-NEUTRON IRRADIATION

被引：44

作者：

HU, QY

WEBER, HW

SAUERZOPF, FM

SCHULTZ, GW

SCHALK, RM

NEUMULLER, HW

DOU, SX

机构：

[1] SIEMENS AG,ZENT FORSCH & ENTWICKLUNG,D-91050 ERLANGEN,GERMANY

[2] UNIV WOLLONGONG,CTR SUPERCOND & ELECTR MAT,WOLLONGONG,NSW 2522,AUSTRALIA

来源：

APPLIED PHYSICS LETTERS | 1994年 / 65卷 / 23期

关键词：

D O I：

10.1063/1.112491

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on significant enhancements of the transport critical current densities Jc in (Bi,Pb)2Sr2Ca 2Cu3O10/Ag tapes at 77 K and higher magnetic fields after neutron irradiation. This enhancement is attributed to an improvement in the flux pinning capability of this material by the neutron-induced defects. The angular dependence of Jc is still consistent with two-dimensionality, i.e., flux pinning of pancake and/or Josephson vortices is directly confirmed by this transport measurement. Fast neutron irradiation also affects the weak links in a way which agrees with previous results on unaligned ceramics. However, there are some peculiarities which need further investigation. © 1994 American Institute of Physics.

引用

页码：3008 / 3010

页数：3

共 15 条

[1]

BRANDSTATTER G, 1994, CRITICAL CURRENTS SU, P303

[2]

CZURDA C, 1994, ADV CRYOG ENG, V40, P79

[3] RELATION OF CRITICAL CURRENT IRREVERSIBILITY TO TRAPPED FLUX AND MICROSTRUCTURE IN POLYCRYSTALLINE YBA2CU3O7 [J].