Low-field AC susceptibility study of the flux motion in Bi2Sr2CaCu2Oy thin films

被引：0

作者：

Pop, A. V. ^{[1
]}

Manolache, S. ^{[1
]}

Matei, I. ^{[1
]}

Pop, V.

机构：

[1] Univ Babes Bolyai, Fac Phys, R-3400 Cluj Napoca, Romania

来源：

INTERNATIONAL CONFERENCE ON SUPERCONDUCTIVITY AND MAGNETISM (ICSM) | 2009年 / 153卷

关键词：

HIGH-TEMPERATURE SUPERCONDUCTORS; EPITAXIAL BI2SR2CACU2O8+DELTA FILMS; HIGH-TC SUPERCONDUCTORS; THERMAL FLUCTUATIONS; TRANSITION; CREEP; PHASE; LINE;

D O I：

10.1088/1742-6596/153/1/012025

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

DC magnetron sputtering technique were used for the synthesis of high quality epitaxial thin films of the superconducting cuprate Bi(2)Sr(2)CaCu(2)Oy (Bi: 2212) thin films. The structural characterization carried by X-ray diffraction indicates that the films are single phase and oriented with their c-axis perpendicular to the substrate surface. The flux motion mechanisms in the vicinity of the irreversibility line have been studied by AC susceptibility technique. The temperature dependencies of real and imaginary parts of AC susceptibility were performed, by using different values of amplitude and frequency. Temperature dependence and low field dependence of the activation energy for flux motion were obtained

引用

页数：6

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