Laser-induced electromotive force of a metal-superconductor Y-Ba-Cu-O junction

被引：4
|
作者：
Mao, Guifen [1 ]
Wang, Dehuang [1 ]
Wang, Lanping [1 ]
Lin, Jinlong [1 ]
Wang, Guowen [1 ]
机构：
[1] Peking Univ, Beijing, China
来源：
Physica C: Superconductivity and its Applications | 1992年 / 190卷 / 03期
关键词：
Ceramic Materials - Laser Beams--Applications - Yttrium Compounds;
D O I：
10.1016/0921-4534(92)90608-F
中图分类号：
学科分类号：
摘要：
We report an experimental investigation on the laser induced electromotive force effect of a metal-superconductor YBa2Cu3O7-δ junction around Tc. The experimental method and results are presented in detail. With a 632.8 nm He-Ne laser, the induced voltage-temperature dependence was obtained. Two photovoltaic effects with different signs were discovered and tentatively explained. The curve for non-superconducting Y-Ba-Cu-O was compared with that for superconducting YBa2Cu3O7-δ. In addition, the effect of probes of different metals on the induced electromotive force was studied.
引用
收藏
页码：285 / 288
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