MAGNETIC-FLUX MOTION OF SUPERCONDUCTING BI-SR-CA-CU-O FILMS AFTER ION IRRADIATION

被引：4

作者：

HOSHIYA, T

TAKAMURA, S

ARUGA, T

KOBIYAMA, M

机构：

[1] JAPAN ATOM ENERGY RES INST, TOKAI RES ESTAB, TOKAI, IBARAKI 31911, JAPAN

[2] IBARAKI UNIV, FAC ENGN, HITACHI, IBARAKI 316, JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1990年 / 29卷 / 08期

关键词：

Bi-Sr-Ca-Cu-O film; Electrical resistivity; He ion irradiation; Magnetic field; Pinning center; Radiation damage; Transition temperature;

D O I：

10.1143/JJAP.29.L1443

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The temperature dependence of electrical resistance under applied magnetic fields was measured by the resistive method in polycrystalline Bi-Sr-Ca-Cu-O films after He ion irradiation at room temperature. The broadening of the transition temperature in the low resistance region was suppressed as the irradiation fluence increased. The effective activation energy was raised by ion irradiation. These changes are due to the presence of pinning centers produced by ion irradiation. © 1990 IOP Publishing Ltd.

引用

页码：L1443 / L1445

页数：3

共 7 条

[1] THEORY OF FLUX CREEP IN HARD SUPERCONDUCTORS [J].