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Design of the Local Spin Polarization at the Organic-Ferromagnetic Interface

Atodiresei, Nicolae; Brede, Jens; Lazić, Predrag; Caciuc, Vasile; Hoffmann, Germar; Wiesendanger, Roland; Blügel, Stefan (2010) Design of the Local Spin Polarization at the Organic-Ferromagnetic Interface. Physical Review Letters, 105 (6). 066601-1. ISSN 0031-9007

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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 �ðpzÞ 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.

Item Type: Article
Uncontrolled Keywords: ab-initio; electronic-structures; room-temperature; semiconductors; injection; magnetoelectronics; transition; simulation; complexes; mechanism, organic-ferromagnetic interface; spintronic; molecular electronics
Subjects: NATURAL SCIENCES > Physics
Divisions: Theoretical Physics Division
Depositing User: Predrag Lazić
Date Deposited: 26 Feb 2013 15:17
DOI: 10.1103/PhysRevLett.105.066601

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