Abundant photoelectronic behaviors of La0.67Sr0.33MnO3/Nb:SrTiO3 junctions

被引：0
|
作者：
黄海林 [1 ,2 ]
王登京 [1 ]
张洪瑞 [2 ]
张慧 [2 ]
熊昌民 [3 ]
孙继荣 [2 ]
沈保根 [2 ]
机构：
[1] Department of Applied Physics Wuhan University of Science and Technology
[2] Beijing National Laboratory for Condensed Matter Physics and Institute of Physics Chinese Academy of Sciences
[3] Department of Physics Beijing Normal University
来源：
Chinese Physics B | 2017年 / 07期
基金：
中国国家自然科学基金;
关键词：
manganite; heterojunction; photocurrent;
D O I：
暂无
中图分类号：
O484 [薄膜物理学];
学科分类号：
080501 ; 1406 ;
摘要：
Temperature dependence on rectifying and photoelectronic properties of La0.67Sr0.33MnO3/Nb:SrTiO3(LSMO/STON) junctions with the thickness values of LSMO film varying from 1 nm to 54 nm are systematically studied. As shown experimentally, the junctions exhibit good rectifying properties. The significant differences in photoemission property among the LSMO/STON junctions are observed. For the junction in a thicker LSMO film, the photocurrent shows a monotonic growth when temperature decreases from 300 K to 13 K. While for the junction in an ultrathin LSMO film, the behaviors of photocurrent are more complicated. The photocurrent increases rapidly to a maximum and then smoothly decreases with the decrease of temperature. The unusual phenomenon can be elucidated by the diffusion and recombination model of the photocarrier.
引用
收藏
页码：337 / 341
页数：5
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