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RESEARCH PRODUCT
Magnetic Anisotropies and Coupling Mechanisms inFe/Mo(110)Nanostripes
A. KukuninJ. ProkopHans-joachim Elmerssubject
Materials scienceMagnetic domainCondensed matter physicsNanowireGeneral Physics and AstronomyCondensed Matter::Mesoscopic Systems and Quantum Hall Effectlaw.inventionCondensed Matter::Materials ScienceMagnetic anisotropyDomain wall (magnetism)lawMonolayerScanning tunneling microscopeSingle crystalMagnetic dipole–dipole interactiondescription
Using low-temperature (5 K) spin-polarized scanning tunneling microscopy, we have studied the morphology and magnetic properties of monolayer (ML) and double layer (DL) thick Fe nanowires grown by step flow on a Mo(110) single crystal. Magnetic contrast has been obtained using tungsten tips covered by Au/Co thin films. We find that the DL Fe nanowires, similarly to ML Fe nanowires, are perpendicularly magnetized. Because of the dipolar coupling, separated DL Fe nanowires are antiferromagnetically coupled. DL wires that are touching at step edges are ferromagnetically ordered due to direct exchange coupling. We measured the widths of the magnetic domain walls in the ML and DL Fe nanowires. The domain wall width increases with the thickness of Fe.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2005-10-25 | Physical Review Letters |