NON-BULK SUPERCONDUCTIVITY INDUCED BY NEUTRON-IRRADIATION IN MULTIPHASE YBA2CU3O7 AND TL2CA1BA2CU2O8

被引：15

作者：

BODI, AC

CSIKAI, J

PEPELNIK, R

HALASZ, I

KIRSCHNER, I

KOVACS, G

PORJESZ, T

TRAGER, T

机构：

[1] GKSS FORSCH ZENTRUM GEESTHACHT GMBH,INST PHYS,GEESTHACHT,GERMANY

[2] CENT RES INST CHEM,BUDAPEST,HUNGARY

[3] EOTVOS LORAND UNIV,DEPT LOW TEMP PHYS,BUDAPEST,HUNGARY

[4] CENT RES & DESIGN INST SILICATE IND,BUDAPEST,HUNGARY

来源：

PHYSICA C | 1990年 / 165卷 / 01期

基金：

匈牙利科学研究基金会;

关键词：

D O I：

10.1016/0921-4534(90)90436-I

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Irradiation effects of low-dose (1014 n/cm2) neutrons on the resistance and AC susceptibility of multiphase YBa2Cu3O7 and Tl2Ca1Ba2Cu2O8 have been studied. Experimental results show that dispersed local superconducting regions in the samples may be unified to form a continuous percolating network using neutron irradiation. If the concentration of oxygen vacancies and interstitials is below or above an optimum value, the irradiation increases or decreases, respectively, the superconductive volume fraction and - via Cu-O bond length - the Tc value. © 1990.

引用

页码：83 / 90

页数：8

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