Spin- and Energy-Dependent Tunneling through a single Molecule with Intramolecular Spatial Resolution (CROSBI ID 165287)
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Podaci o odgovornosti
Brede, Jens ; Atodiresei, Nicolae ; Kuck, Stefan ; Lazić, Predrag ; Caciuc, Vasile ; Morikawa, Yoshitada ; Hoffmann, Germar ; Blügel, Stefan ; Wiesendanger, Roland
engleski
Spin- and Energy-Dependent Tunneling through a single Molecule with Intramolecular Spatial Resolution
We investigate the spin- and energy-dependent tunneling through a single organic molecule (CoPc) adsorbed on a ferromagnetic Fe thin film, spatially resolved by low-temperature spin-polarized scanning tunneling microscopy. Interestingly, the metal ion as well as the organic ligand show a significant spin dependence of tunneling current flow. State-of-the-art ab initio calculations including also van der Waals interactions reveal a strong hybridization of molecular orbitals and substrate 3d states. The molecule is anionic due to a transfer of one electron, resulting in a nonmagnetic (S = 0) state. Nevertheless, tunneling through the molecule exhibits a pronounced spin dependence due to spin-split molecule-surface hybrid states.
tunneling; single molecule; STM; ab initio calculations
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Podaci o izdanju
105 (4)
2010.
047204-1-047204-4
objavljeno
0031-9007
10.1103/PhysRevLett.105.047204