Paramagnetic metal-organic complexes on ferromagnetic surfaces are of significant interest for potential applications in organic spintronics. We study the magnetochemical interactions at tunable �spin-terfaces� by combination of Scanning Tunneling Microscopy (STM) and element specific X-ray Magnetic Circular Dichroism (XMCD).On-surface coordination chemistry in conjunction with a bottom-up approach is employed to fabricate highly ordered two dimensional layers of Fe and Mn complexes. The ferromagnetic substrate induces a magnetic moment into the Fe and Mn ions at room temperature. The selective response of the Fe and Mn spin-systems towards axial coordination with ammonia allows for the reversible switching of the magnetic moments in the Fe-Mn-Fe chess-board lattice. High resolution STM also yields direct visualization of the axial ammonia-coordination.

Spectro-microscopy investigations of designed "Spin-terfaces", controlled by on-surface coordination chemistry

245th National Meeting (2013)

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