Fe:O:C : grown by focused-electron-beam-induced deposition: magnetic and electric properties

R. Lavrijsen, R.M. Cordoba Castillo, F.J. Schoenaker, T.H. Ellis, B. Barcones Campo, J.T. Kohlhepp, H.J.M. Swagten, B. Koopmans, J.M. De Teresa, C. Magén, M.R. Ibarra, P. Trompenaars, J.J.L. Mulders

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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.
Originele taal-2Engels
Pagina's (van-tot)025302-1/9
Aantal pagina's9
Nummer van het tijdschrift2
StatusGepubliceerd - 2011

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    Lavrijsen, R., Cordoba Castillo, R. M., Schoenaker, F. J., Ellis, T. H., Barcones Campo, B., Kohlhepp, J. T., Swagten, H. J. M., Koopmans, B., De Teresa, J. M., Magén, C., Ibarra, M. R., Trompenaars, P., & Mulders, J. J. L. (2011). Fe:O:C : grown by focused-electron-beam-induced deposition: magnetic and electric properties. Nanotechnology, 22(2), 025302-1/9. [025302]. https://doi.org/10.1088/0957-4484/22/2/025302