Interfacial spectroscopic characterization of organic/ferromagnet hetero-junction of 3,4,9,10-perylene-teracarboxylic dianhydride-based organic spin valves
- Department of Physics, National Taiwan University, 10617 Taipei, Taiwan (China)
- National Synchrotron Radiation Research Center, 30076 Hsinchu, Taiwan (China)
- Department of Physics, Chinese Culture University, 11114 Taipei, Taiwan (China)
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.
- OSTI ID:
- 22293119
- Journal Information:
- Applied Physics Letters, Vol. 104, Issue 8; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
Similar Records
High resolution photoemission spectroscopy: Evidence for strong chemical interaction between Mg and 3,4,9,10-perylene-tetracarboxylic dianhydride
Interaction of alkali metals with perylene-3,4,9,10- tetracarboxylic-dianhydride thin films
Determination of the individual atomic site contribution to the electronic structure of 3,4,9,10-perylene-tetracarboxylic-dianhydride (PTCDA)
Journal Article
·
Mon Oct 16 00:00:00 EDT 2006
· Applied Physics Letters
·
OSTI ID:22293119
Interaction of alkali metals with perylene-3,4,9,10- tetracarboxylic-dianhydride thin films
Journal Article
·
Fri Jul 01 00:00:00 EDT 2005
· Journal of Applied Physics
·
OSTI ID:22293119
+2 more
Determination of the individual atomic site contribution to the electronic structure of 3,4,9,10-perylene-tetracarboxylic-dianhydride (PTCDA)
Journal Article
·
Thu Nov 14 00:00:00 EST 2013
· Journal of Chemical Physics
·
OSTI ID:22293119
+1 more