Photoinduced superconducting nanowires in GdBa2Cu3O6.5 films

被引：8

作者：

Decca, RS ^{[1
]}

Drew, HD

Maiorov, B

Guimpel, J

Osquiguil, E

机构：

[1] Univ Maryland, Phys Sci Lab, College Pk, MD 20742 USA

[2] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

[3] Ctr Atom Bariloche, RA-8400 SC De Bariloche, Rio Negro, Argentina

[4] Inst Balseiro, RA-8400 SC De Bariloche, Rio Negro, Argentina

来源：

APPLIED PHYSICS LETTERS | 1998年 / 73卷 / 01期

关键词：

D O I：

10.1063/1.121787

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report the fabrication of high-T-c superconducting wires by photodoping a GdBa2Cu3O6.5 thin film. An optical near-field probe was used to locally excite carriers in the system at room temperature. Trapping of the photogenerated electrons define a confining potential for the conducting holes in the CuO planes. Spatially resolved reflectance measurements show the photogenerated nanowires to be similar to 250 nm wide. Electron diffusion, before electron capture, is believed to be responsible for the observed width of the wires. (C) 1998 American Institute of Physics.

引用

页码：120 / 122

页数：3

共 13 条

[1] TEMPORAL RELAXATION OF NONEQUILIBRIUM IN Y-BA-CU-O MEASURED FROM TRANSIENT PHOTOIMPEDANCE RESPONSE [J].