Interfacial spectroscopic characterization of organic/ferromagnet hetero-junction of 3,4,9,10-perylene-teracarboxylic dianhydride-based organic spin valves

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Title:	Interfacial spectroscopic characterization of organic/ferromagnet hetero-junction of 3,4,9,10-perylene-teracarboxylic dianhydride-based organic spin valves
Authors:	Hong, Jhen-Yong Yang, Kui-Hon Ou Wang, Bo-Yao Li, Kai-Shin Shiu, Hung-Wei Chen, Chia-Hao Chan, Yuet-Loy Wei, Der-Hsin Chang, Fan-Hsiu Lin, Hong-Ji Chiang, Wen-Chung Lin, Minn-Tsong
Contributors:	物理學系
Keywords:	ELECTRONIC-STRUCTURE CHARGE-TRANSPORT SEMICONDUCTOR SPINTRONICS PTCDA INJECTION SPECTRA METAL AG
Date:	2014-02-24
Issue Date:	2015-01-27 13:22:48 (UTC+8)
Abstract:	We report interfacial characterization of 3,4,9,10-perylene-teracarboxylic dianhydride (PTCDA)-based organic spin valves (OSV) dusted with a thin layer of partially oxidized alumina at the organic semiconductor (OSC)/ferromagnet (FM) interfaces. Up to 13.5% magnetoresistance is achieved at room temperature. X-ray photoelectron spectroscopy measurements reveal interfacial electronic interaction between PTCDA and FM while the application of a thin alumina layer at the PTCDA/FM interfaces prevents the electronic hybridization and effectively preserves the spin injection into the OSC spacer. This finding demonstrates the critical effect of interfacial structure on magnetotransport behavior in OSV. (C) 2014 AIP Publishing LLC.
Relation:	APPLIED PHYSICS LETTERS 卷: 104 期: 8 文獻號碼: 083301
Appears in Collections:	[Department of Physics ] journal articles

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