Depth Profiling Photoelectron-Spectroscopic Study of an Organic Spin Valve with a Plasma-Modified Pentacene Spacer

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Title:	Depth Profiling Photoelectron-Spectroscopic Study of an Organic Spin Valve with a Plasma-Modified Pentacene Spacer
Authors:	Hong, JY (Hong, Jhen-Yong) Chang, YM (Chang, Yin-Ming) Chuang, CH (Chuang, Cheng-Hao) Li, KS (Li, Kai-Shin) Jhang, YC (Jhang, You-Cih) Shiu, HW (Shiu, Hung-Wei) Chen, CH (Chen, Chia-Hao) Chiang, WC (Chiang, Wen-Chung) Lin, MT (Lin, Minn-Tsong)
Contributors:	Dept Phys
Keywords:	THIN-FILM TRANSISTORS GIANT MAGNETORESISTANCE SEMICONDUCTOR SPINTRONICS MONOLAYERS INJECTION SURFACES METAL
Date:	2012-10
Issue Date:	2013-02-19 14:15:02 (UTC+8)
Abstract:	We report an enhanced magnetoresistance (MR) in an organic spin valve with an oxygen plasma-treated pentacene (PC) spacer. The spin valve containing PC without the treatment shows no MR effect, whereas those with moderately plasma-treated PC exhibit MR ratios up to 1.64% at room temperature. X-ray photoelectron spectroscopy with depth profiling is utilized to characterize the interfacial electronic properties of the plasma-treated PC spacer which shows the formation of a derivative oxide layer. The results suggest an alternative approach to improve the interface quality and in turn to enhance the MR performance in organic spin valves.
Relation:	JOURNAL OF PHYSICAL CHEMISTRY C 卷: 116 期: 40 頁數: 21157-21161
Appears in Collections:	[Department of Physics ] journal articles

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