Thermoelectric Effect of YBa_(2)Cu_(3)O_(7-δ) Films with Risetime of 0.6 Nanosecond  

作　　者：ZHANG Lian-fang TANG Bo HUANG He-sheng ZHANG Hui-yun LIU Meng-lin WU Zhen-yi ZHOU Yue-liang 

机构地区：[1]Department of Physics,Tsinghua University,Beijing 100084 [2]Institute of Physics,Chinese Academy of Sciences,Beijing 100080

出　　处：《Chinese Physics Letters》1996年第7期545-548,共4页中国物理快报（英文版）

基　　金：Supported in part by the Chinese National Center for Research and Development on Superconductivity,and Research Funds of Tsinghua University.

摘　　要：Voltage pulses of 90 V have been observed in YBa_(2)Cu_(3)O_(7-δ) films with a tilted orientation when they are illuminated by pulsed laser at room temperature.The signals result from the anisotropy of thermoelectricity in the films.The thermoelectric signals related to the tilted angle are linear to the laser power and wavelength-independent.It is shown that the response of films to the mode-locked laser has a risetime less than 1ns and width less than 20 ns.The films with the superconducting transition temperature of 90K were prepared by laser ablation.

关 键 词：TEMPERATURE LASER 

分 类 号：TL5[核科学技术—核技术及应用]