IDENTIFICATION OF NONBOLOMETRIC PHOTORESPONSE IN YBA2CU3O7-DELTA THIN-FILMS BASED ON MAGNETIC-FIELD DEPENDENCE

被引：20
|
作者：
HEGMANN, FA [1 ]
PRESTON, JS [1 ]
机构：
[1] MCMASTER UNIV,DEPT ENGN PHYS,HAMILTON L8S 4M1,ONTARIO,CANADA
来源：
APPLIED PHYSICS LETTERS | 1993年 / 62卷 / 10期
关键词：
D O I：
10.1063/1.109613
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Optically induced transient voltages across a current-biased bridge structure fabricated from an epitaxial YBa2Cu3O7-delta thin film are reported. A novel technique consisting of applying a small magnetic field perpendicular to the sample was used to identify any bolometric contribution to the photoresponse. Comparison to resistance versus temperature curves with and without the field establishes a slow component in the photoresponse as bolometric and unambiguously identifies a fast component as a nonthermal transient.
引用
收藏
页码：1158 / 1160
页数：3
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