钙钛矿型锰氧化合物的光电效应  

PHOTOELECTRIC EFFECT IN MANGANESE OXIDES WITH PEROVSKITE STRUCTURE

作　　者：郝建华[1,2] 曾宪庭[1,2] 黄康权 

机构地区：[1]华中理工大学光电子工程系 [2]香港中文大学物理系

出　　处：《红外与毫米波学报》1998年第2期157-160,共4页Journal of Infrared and Millimeter Waves

基　　金：国防科技基金;香港研究资助局(RGC)基金

摘　　要：报道了Ｌａ０．６７Ｃａ０．３３ＭｎＯδ单晶薄膜的光响应．这类钙钛矿型锰氧化物响应为测辐射热模式．新型测辐射热计宽波段光吸收系数高．调整掺杂组份和氧计量比可获得合适工作温区．此外，还报道了样品的噪声特性．The optical response in single crystal films of La 0.67 Ca 0.33 MnO δ of manganese oxides with perovskite structure was reported. The response follows the bolometric mode fairly well. This new kind of bolometers has high absorption coefficients over a broad wavelength range. By adjusting the doping composition or oxygen stoichiometry, one can tailor the desired operating temperature. The noise properties in LCMO films were also reported.

关 键 词：LCMO 薄膜 光探测 辐射热 钙钛矿型 光电效应 

分 类 号：O484.4[理学—固体物理]