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

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

Abstract

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.

Keywords: manganese oxide thin film photoelectric characteristic

Received: 26 October 2004
Accepted manuscript online:

PACS:	72.40.+w	(Photoconduction and photovoltaic effects)
	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)

Fund: Project supported by the National Natural Science Foundation of China (Grant No 10334070).

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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 2005 Chinese Physics 14 420

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

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