AC SCREENING MEASUREMENT FOR THE CHARACTERIZATION OF CERAMIC SUPERCONDUCTORS .2. ELECTRON-IRRADIATION EFFECT ON YBA2CU3O7

被引：5

作者：

KONCZYKOWSKI, M ^{[1
]}

GILCHRIST, J ^{[1
]}

机构：

[1] CNRS,CTR RECH TRES BASSES TEMP,F-38042 GRENOBLE,FRANCE

来源：

PHYSICA C | 1990年 / 168卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(90)90115-U

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effect of 2.5 MeV electron irradiation on ceramic sintered YBa2Cu3O7 was investigated by in situ measurements at 20 K of the screening efficiency of a sample between two small AC coils. The complex transmittivity, T, was measured as a function of the superposed static magnetic field HDC for various irradiation doses. From the analysis of T(HDC) curves following a model presented in the preceding paper, we deduce a decrease of the characteristic magnetic filed of Josephson junctions after irradiation and a very slight increase of intergrain critical current JcJ at very low irradiation doses followed by a decrease. An increase of the width of hysteresis loops in T(HDC) curves was also observed after irradiation. © 1990.

引用

页码：131 / 137

页数：7

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