PHOTOINDUCED SUPERCONDUCTIVITY IN YBA2CU3O6.4 FILMS

被引：10

作者：

KUDINOV, VI ^{[1
]}

CHAPLYGIN, IL ^{[1
]}

KIRILYUK, AI ^{[1
]}

KREINES, NM ^{[1
]}

LAIHO, R ^{[1
]}

LAHDERANTA, E ^{[1
]}

机构：

[1] UNIV TURKU,WIHURI PHYS LAB,SF-20500 TURKU 50,FINLAND

来源：

PHYSICA C | 1991年 / 185卷

关键词：

D O I：

10.1016/0921-4534(91)91599-Y

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Photoinduced superconductivity has been investigated in YBa2Cu306.4 films near to the semiconductor-metal transition. Light induced changes in the resistance and growth of a diamagnetic moment were observed. The data revealed a dependence between photoinduced reduction of normal state resistance and the increase of the onset temperature of superconductivity in the films. Prolonged irradiation leaded to a seemingly complete loss of resistivity below 5 K. These phenomena were attributed to photo generation of additional mobile holes in CuO2 layers resulting to superconductivity.

引用

页码：751 / 752

页数：2