Ultrafast Photoelectric Effects in Heterojunctions of La0.7Sr0.3MnO3 and Si

Chin. Phys. Lett.

2004, Vol. 21

Issue (11): 2308-2309 DOI:

Original Articles

Ultrafast Photoelectric Effects in Heterojunctions of La_0.7Sr_0.3MnO₃ and Si

Lü Hui-Bin;JIN Kui-Juan;HUANG Yan-Hong;HE Meng;ZHAO Kun;ZHOU Yue-Liang;CHENG Bo-Lin;CHEN Zheng-Hao;DAI Shou-Yu;YANG Guo-Zhen

Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080

Cite this article:

Lü Hui-Bin, JIN Kui-Juan, HUANG Yan-Hong et al 2004 Chin. Phys. Lett. 21 2308-2309

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Abstract Ultrafast photoelectric effects have been observed in p--n heterojunctions of La_0.7Sr_0.3MnO₃(LSMO)/Si and LSMO/SrTiO_3-/Si for the first time. The rise time was about 1 ns and the full width at half maximum was about 2 ns for the photovoltaic pulse when the heterojunction was irradiated by a laser of ～25 ps pulse duration and 1064 nm wavelength. The photovoltaic sensitivity was as large as 435 mV/mJ for a 1064 nm laser pulse. No such pulse was observed with irradiation from a pulsed 10.6 μm CO₂ laser.

Keywords: 85.30.Kk 72.40.+w 67.70.+n 42.50.Vk

Published: 01 November 2004

PACS:	85.30.Kk	(Junction diodes)
	72.40.+w	(Photoconduction and photovoltaic effects)
	67.70.+n
	42.50.Vk

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2004/V21/I11/02308

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	Lü Hui-Bin
	JIN Kui-Juan
	HUANG Yan-Hong
	HE Meng
	ZHAO Kun
	ZHOU Yue-Liang
	CHENG Bo-Lin
	CHEN Zheng-Hao
	DAI Shou-Yu
	YANG Guo-Zhen

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