Voltage-current characteristics of c-axis oriented YBa2Cu3O7-δ films deposited by dc sputtering

被引：2
作者：
De Santis, A
Grimaldi, G
Gambardella, U
Pace, S
Cucolo, AM
Cucolo, MC
Boffa, V
Celentano, G
Fabbri, F
机构：
[1] Univ Salerno, Dept Phys, INFM Res Unit, I-84081 Baronissi, Italy
[2] ENEA Frascati, I-00044 Frascati, Italy
来源：
PHYSICA C | 2000年 / 340卷 / 2-3期
关键词：
HTc film; critical current; pinning;
D O I：
10.1016/S0921-4534(00)01336-8
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We analyze the voltage-current characteristics of high quality c-axis oriented YBa2Cu3O7-delta films with T-c0 approximate to 91 K. The films were de sputtered in a pure oxygen atmosphere on SrTiO3 (1 0 0) substrates and then patterned in a shape of a long strip. The voltage-current characteristics are modeled with single or multiple Gaussian distributions of depinning currents. We derive the distribution features as a function of the applied magnetic field at different temperatures. (C) 2000 Elsevier Science B.V. All rights reserved.
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收藏
页码：225 / 229
页数：5
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