Berlin 2012 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 32: Joint Session "Surface Magnetism I" (jointly with O)

MA 32.8: Vortrag

Mittwoch, 28. März 2012, 18:00–18:15, BH 243

The spin structure of Mn on Co/Cu(001) studied by spin-polarized STM with bulk Cr tips and bulk Fe ring probes — •Chii-Bin Wu, Jiaming Song, and Wolfgang Kuch — Arnimallee 14, 14195 Berlin

Spin-polarized scanning tunneling microscopy with bulk Cr tips and bulk Fe ring probes was used to study the antiferromagnetic (AFM) domains of Mn on Co/Cu(001) at room temperature. Layerwise spin contrast was observed, as well as spin frustration along the overgrown steps of the underlying Co film. Besides, comparison of shape and size of additional small scattered areas with opposite spin contrast on flat terraces to islands at the surface of the Co layer indicates the importance of interface roughness on the spin structure of AFM layers in exchange bias systems.