| Literature DB >> 21135470 |
R Lavrijsen1, R Córdoba, F J Schoenaker, T H Ellis, B Barcones, J T Kohlhepp, H J M Swagten, B Koopmans, J M De Teresa, C Magén, M R Ibarra, P Trompenaars, J J L Mulders.
Abstract
We systematically study the effect of oxygen content on the magneto-transport and microstructure of Fe:O:C nanowires deposited by focused-electron-beam-induced (FEBID) deposition. The Fe/O ratio can be varied with an Fe content varying between ∼ 50 and 80 at.% with overall low C content (≈16 ± 3 at.%) by adding H(2)O during the deposition while keeping the beam parameters constant as measured by energy dispersive x-ray (EDX) spectroscopy. The room-temperature magnetic properties for deposits with an Fe content of 66-71 at.% are investigated using the magneto-optical Kerr effect (MOKE) and electric magneto-transport measurements. The nanostructure of the deposits is investigated through cross-sectional high-resolution transmission electron microscopy (HRTEM) imaging, allowing us to link the observed magneto-resistance and resistivity to the transport mechanism in the deposits. These results demonstrate that functional magnetic nanostructures can be created, paving the way for new magnetic or even spintronics devices.Entities:
Year: 2010 PMID: 21135470 DOI: 10.1088/0957-4484/22/2/025302
Source DB: PubMed Journal: Nanotechnology ISSN: 0957-4484 Impact factor: 3.874