Pico-second photoelectric characteristic in manganite oxide La0.67Ca0.33MnO3 films

doi:10.1088/1009-1963/14/2/034

中国物理B ›› 2005, Vol. 14 ›› Issue (2): 420-421.doi: 10.1088/1009-1963/14/2/034

Pico-second photoelectric characteristic in manganite oxide La_0.67Ca_0.33MnO₃ films

黄延红¹, 吕惠宾¹, 何萌¹, 金奎娟¹, 陈正豪¹, 周岳亮¹, 程波林¹, 戴守愚¹, 杨国桢¹, 赵昆²

(1)Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China; (2)Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China; International Centre for Materials Physics, Chinese Academy of Sciences, Shenyang 110016, China

收稿日期:2004-10-26 出版日期:2005-03-02 发布日期:2005-03-02
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No 10334070).

Pico-second photoelectric characteristic in manganite oxide La_0.67Ca_0.33MnO₃ films

Zhao Kun (赵昆)^ab, Huang Yan-Hong (黄延红)^a, Lü Hui-Bin (吕惠宾)^a, He Meng (何萌)^a, Jin Kui-Juan (金奎娟)^a, Chen Zheng-Hao (陈正豪)^a, Zhou Yue-Liang (周岳亮)^a, Cheng Bo-Lin (程波林)^a, Dai Shou-Yu (戴守愚)^a, Yang Guo-Zhen (杨国桢)^a

^a Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China; ^b International Centre for Materials Physics, Chinese Academy of Sciences, Shenyang 110016, China

Received:2004-10-26 Online:2005-03-02 Published:2005-03-02
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No 10334070).

摘要/Abstract

摘要： Ultrafast photoelectric characteristic has been observed in La_0.67Ca_0.33MnO₃ films on tilted SrTiO₃ substrates. A pico-second (ps) open-circuit photovoltage of the perovskite manganese oxide films has been obtained when the films were irradiated by a 1.064μm laser pulse of 25 ps duration. The rise time and full width at half-maximum of the photovoltage pulse are ～300 ps and ～700 ps, respectively. The photovoltaic sensitivity was as large as ～500 mV/mJ.

关键词: manganese oxide, thin film, photoelectric characteristic

Abstract: Ultrafast photoelectric characteristic has been observed in La_0.67Ca_0.33MnO₃ films on tilted SrTiO₃ substrates. A pico-second (ps) open-circuit photovoltage of the perovskite manganese oxide films has been obtained when the films were irradiated by a 1.064μm laser pulse of 25 ps duration. The rise time and full width at half-maximum of the photovoltage pulse are ～300 ps and ～700 ps, respectively. The photovoltaic sensitivity was as large as ～500 mV/mJ.

Key words: manganese oxide, thin film, photoelectric characteristic

中图分类号: (Photoconduction and photovoltaic effects)

72.40.+w

78.47.-p (Spectroscopy of solid state dynamics) 61.80.Ba (Ultraviolet, visible, and infrared radiation effects (including laser radiation)) 73.50.Pz (Photoconduction and photovoltaic effects)

赵昆, 黄延红, 吕惠宾, 何萌, 金奎娟, 陈正豪, 周岳亮, 程波林, 戴守愚, 杨国桢. Pico-second photoelectric characteristic in manganite oxide La_0.67Ca_0.33MnO₃ films[J]. 中国物理B, 2005, 14(2): 420-421.

Zhao Kun (赵昆), Huang Yan-Hong (黄延红), Lü Hui-Bin (吕惠宾), He Meng (何萌), Jin Kui-Juan (金奎娟), Chen Zheng-Hao (陈正豪), Zhou Yue-Liang (周岳亮), Cheng Bo-Lin (程波林), Dai Shou-Yu (戴守愚), Yang Guo-Zhen (杨国桢). Pico-second photoelectric characteristic in manganite oxide La_0.67Ca_0.33MnO₃ films[J]. Chinese Physics, 2005, 14(2): 420-421.

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Pico-second photoelectric characteristic in manganite oxide La_0.67Ca_0.33MnO₃ films

Pico-second photoelectric characteristic in manganite oxide La_0.67Ca_0.33MnO₃ films

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