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

Temperature dependence on rectifying and photoelectronic properties of La_（0.67）Sr_（0.33）MnO_3/Nb：SrTiO_3（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...

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Bibliographic Details
Published in:中国物理B：英文版 2017-07, Vol.26 (7), p.333-337
Main Author: 黄海林 王登京 张洪瑞 张慧 熊昌民 孙继荣 沈保根
Format: Article
Language:English
Subjects:
LSMO
光生载流子
光电性能
厚度变化
温度依赖性
行为
连接系统
钛酸锶
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Summary:Temperature dependence on rectifying and photoelectronic properties of La_（0.67）Sr_（0.33）MnO_3/Nb：SrTiO_3（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.
ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/26/7/077302