Regensburg 2013 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

O: Fachverband Oberflächenphysik

O 79: Oxide Surfaces III

O 79.10: Vortrag

Donnerstag, 14. März 2013, 18:15–18:30, H45

An Atomic-Force-Microscopy study of Cu₂N on Cu(100) — •Maximilian Schneiderbauer, Matthias Emmrich, and Franz J. Giessibl — Regensburg University, Department of Physics, Regensburg, Germany

Recently Loth et al. [1] showed a new approach to push the spatial size of stored bits to the atomic scale. They tailored a switchable antiferromagnetic nanostructure made of a (2x6) Fe atom array exhibiting large magnetic anisotropy. To magnetically decouple this stand-alone spin structure from the conducting Cu substrate they used Cu₂N.

Thorough Scanning-Tunneling-Microscopy (STM) studies revealed the incommensurability of Cu₂N monolayer islands on Cu(100) [2, 3]. Although Cu₂N was as of yet just used in (spin polarized) STM experiments it is a promising candidate for magnetic sensitive Atomic-Force-Microscopy measurements. We have shown the qPlus setup capable of imaging magnetic domains [4] and, more recently, of detecting spin contrast [5]. Therefore we are currently studying Cu₂N on Cu(100) for future work on magnetic exchange force microscopy. In this contribution we show recent results from our home-built low-temperature qPlus setup.
S. Loth et al Science 335, 196-199 (2012).
F.M. Leibsle et al Surf. Sci. 317, 309-320 (1994).
T. Choi et al Phys. Rev. B 78, 035430 (2008).
M. Schneiderbauer et al Beilstein J. Nanotechnol. 3, 174-178 (2012).
F. Pielmeier et al submitted.