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Magnetic anisotropy and relaxation of single Fe/Fex
core/shell- nanocubes: A ferromagnetic resonance investigation
1.M. Angelakeris, Zi-An Li, M. Hilgendorff, K. Simeonidis, D. Sakellari, M. Filippousi, H. Tian, G. Van Tendeloo, M. SpasovaM, and Acet M. Farle, J. of Mag. and mag. Mat. 381, 179 (2015).
5.F. Kronast, N. Friedenberger, K. Ollefs, S. Gliga, L. Tati-Bismaths, R. Thies, A. Ney, R. Weber, Chr. Hassel, F. M. Römer, A. V. Trunova, Chr. Wirtz, R. Hertel, H. A. Dürr, and M. Farle, Nano Lett. 11, 1710 (2011).
8.A. Banholzer, R. Narkowicz, C. Hassel, R. Meckenstock, S. Stienen, O. Posth, D. Suter, M. Farle, and J. Lindner, Nanotechnology 22, 295713 (2011).
9.C. Schöppner, K. Wagner, S. Stienen, R. Meckenstock, M. Farle, R. Narkowicz, D. Suter, and J. Lindner, J. Appl. Phys. 116, 033913 (2014).
11.J. Lindner and M. Farle, Magnetic Anisotropy of Heterostructures (STMP, 2007), p. 227.
13.B. W. Zingsem, S. Masur, P. Wendtland, R. Meckenstock, F. M Römer, and Michael Farle, to be published.
14.R.M. Cornell and U. Schwertmann, The Iron Oxides (Wiley-VHC, 2003).
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In this work a full angle dependent Ferromagnetic Resonance (FMR) investigation on a system of 20 separated Fe/FexOy nanocubes without dipolar coupling is reported. The angular magnetic field dependence of FMR spectra of 20 single particles and 2 dimers were recorded using a microresonator setup with a sensitivity of 106 μB at X-band frequencies. We determine an effective magnetocrystalline anisotropy field of 2K4,eff/M = 50 mT ± 5 mT for selected particles, which is smaller than the one of bulk Fe due to the core shell morphology of the particles. The FMR resonances have a linewidth of 4 mT ± 1 mT, corresponding to a magnetic effective damping parameter α = 0.0045 ± 0.0005 matching the values of high quality ironthin films. Numerical calculations taking into account the different angular orientations of the 24 particles with respect to the external magnetic field yield a good agreement to the experiment.
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