Dresden 2014 – scientific programme
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O: Fachverband Oberflächenphysik
O 63: Posters: Scanning Probe Methods
O 63.23: Poster
Wednesday, April 2, 2014, 17:30–21:00, P2
STM investigations of iron thin films on W(110) — •christian salazar1, martha scheffler1, tim kühne1, danny baumann1, bernd büchner1,2, and christian hess1,2 — 1Institute for Solid State Research, IFW Dresden, Germany — 2Center for Transport and Devices of Emergent Materials, TU Dresden, 01069 Dresden, Germany
We have investigated the growth and the magnetic structure of iron thin films on a W(110) single crystal by scanning tunneling microscopy. We found that the growing conditions such as temperature and evaporation rate influence the growth of the nanostructures, so that, we observe the formation of islands, large patches with and without dislocation lines and nanowires. The magnetic properties were studied via spin-polarized scanning tunneling microscopy using different magnetic probes: iron coated tungsten tips, chromium coated tungsten tips and chromium bulk tips. Our data reveal in some cases magnetic domains in the first atomic layer of iron, indicative of in-plane magnetization and in other cases magnetic domains in the second atomic layer of iron, indicative of out-of-plane magnetization.