Real-space observation of spin-split molecular orbitals of adsorbed single-molecule magnets

Jörg Schwöbel (), Yingshuang Fu, Jens Brede, Andrew Dilullo, Germar Hoffmann, Svetlana Klyatskaya, Mario Ruben and Roland Wiesendanger
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Jörg Schwöbel: Institute of Applied Physics, University of Hamburg
Yingshuang Fu: Institute of Applied Physics, University of Hamburg
Jens Brede: Institute of Applied Physics, University of Hamburg
Andrew Dilullo: Ohio University
Germar Hoffmann: Institute of Applied Physics, University of Hamburg
Svetlana Klyatskaya: Institute of Nanotechnology, Karlsruhe Institute of Technology
Mario Ruben: Institute of Nanotechnology, Karlsruhe Institute of Technology
Roland Wiesendanger: Institute of Applied Physics, University of Hamburg

Nature Communications, 2012, vol. 3, issue 1, 1-5

Abstract: Abstract A key challenge in the field of molecular spintronics, and for the design of single-molecule magnet-based devices in particular, is the understanding and control of the molecular coupling at the electrode interfaces. It was demonstrated for the field of molecular electronics that the characterization of the molecule-metal-interface requires the precise knowledge of the atomic environment as well as the molecular orbitals being involved in electron transport. To extend the field of molecular electronics towards molecular spintronics, it is of utmost importance to resolve the spin character of molecular orbitals interacting with ferromagnetic leads. Here we present first direct real-space images of spin-split molecular orbitals of a single-molecule magnet adsorbed on a ferromagnetic nanostructure. Moreover, we are able to determine quantitatively the magnitude of the spin-splitting as well as the charge state of the adsorbed molecule.

Date: 2012
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DOI: 10.1038/ncomms1953

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