Design of the local spin polarization at the organic-ferromagnetic interface

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Autor/in:
Erscheinungsjahr:
2010
Medientyp:
Text
Schlagworte:
  • Magnetoresistance
  • Magnetoelectronics
  • Organic spintronics
  • Organic Light Emitting Diodes (OLED)
  • Solar Cells
  • Conjugated Polymers
  • Magnetoresistance
  • Magnetoelectronics
  • Organic spintronics
  • Organic Light Emitting Diodes (OLED)
  • Solar Cells
  • Conjugated Polymers
Beschreibung:
  • By means of ab initio calculations and spin-polarized scanning tunneling microscopy experiments the creation of a complex energy dependent magnetic structure with a tailored spin-polarized interface is demonstrated. We show this novel effect by adsorbing organic molecules containing π(pz) electrons onto a magnetic surface. The hybridization of the out-of-plane pz atomic-type orbitals with the d states of the metal leads to the inversion of the spin polarization at the organic site due to a pz-d Zener exchange-type mechanism. As a key result, we demonstrate the possibility to selectively and efficiently inject spin-up and spin-down electrons from a ferromagnetic-organic interface, an effect which can be exploited in future spintronic devices. © 2010 The American Physical Society.
Lizenz:
  • info:eu-repo/semantics/restrictedAccess
Quellsystem:
Forschungsinformationssystem der UHH
Interne Metadaten
Quelldatensatz
oai:www.edit.fis.uni-hamburg.de:publications/b1012137-8318-46b2-b0a2-8a812ead5246