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MA: Fachverband Magnetismus

MA 4: Surface Magnetism I

MA 4.5: Vortrag

Montag, 23. März 2009, 12:00–12:15, HSZ 403

Visualizing the spin polarizaton of individual molecules — •Benjamin W. Heinrich¹, Mircea V. Rastei¹, Cristian Iacovita¹, Thomas Brumme², Jens Kortus², Laurent Limot¹, and Jean-Pierre Bucher¹ — ¹Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, Université Louis Pasteur, F-67034 Strasbourg, France — ²Institut für Theoretische Physik, TU Bergakademie Freiberg, D-09599 Freiberg, Germany

Low-temperature spin-polarized scanning tunneling microscopy is employed to study spin transport across single cobalt-phthalocyanine molecules adsorbed on well-characterized magnetic nanoleads. A spin-polarized electronic resonance is identified over the center of the molecule and exploited to spatially resolve stationary spin states [1]. These states reflect two molecular spin orientations and, as established by density functional calculations, originate from a ferromagnetic molecule-lead exchange interaction.

[1] C. Iacovita, M.V. Rastei, B.W. Heinrich, T. Brumme, J. Kortus, L. Limot, J.P. Bucher, Phys. Rev. Lett. 101, 116602 (2008)