Title
Magnetic properties of bcc-Fe(001)/C-60 interfaces for organic spintronics Magnetic properties of bcc-Fe(001)/C-60 interfaces for organic spintronics
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Subject
Physics
Engineering sciences. Technology
Source (journal)
ACS applied materials and interfaces
Volume/pages
5(2013) :3 , p. 837-841
ISSN
1944-8244
ISI
000315079700050
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Abstract
The magnetic structure of the interfaces between organic semiconductors and ferromagnetic contacts plays a key role in the spin injection and extraction processes in organic spintronic devices. We present a combined computational (density functional theory) and experimental (X-ray magnetic circular dichroism) study on the magnetic properties of interfaces between bcc-Fe(001) and C-60 molecules. C-60 is an interesting candidate for application in organic spintronics due to the absence of hydrogen atoms and the associated hyperfine fields. Adsorption of C-60 on Fe(001) reduces the magnetic moments on the top Fe layers by similar to 6%, while inducing an antiparrallel magnetic moment of similar to-0.2 mu(B) on C-60. Adsorption of C-60 on a model ferromagnetic substrate consisting of three Fe monolayers on W(001) leads to a different structure but to very similar interface magnetic properties.
E-info
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