Magnetic Properties of bcc-Fe(001)/C-60 Interfaces for Organic Spintronics
Författare
Summary, in English
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.
Avdelning/ar
Publiceringsår
2013
Språk
Engelska
Sidor
837-841
Publikation/Tidskrift/Serie
ACS Applied Materials and Interfaces
Volym
5
Issue
3
Dokumenttyp
Artikel i tidskrift
Förlag
The American Chemical Society (ACS)
Ämne
- Physical Sciences
- Natural Sciences
Nyckelord
- metal-organic interfaces
- spintronics
- X-ray absorption spectroscopy
- X-ray magnetic circular dichroism
- first-principles calculations
- density functional theory
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 1944-8244