Τίτλος:
Magnetic properties of ZnFe 2O 4 nanoparticles
Γλώσσες Τεκμηρίου:
Αγγλικά
Περίληψη:
Fine particles of ZnFe 2O 4 were synthesized by a wet chemical method in the (80 wt.% Fe 2O 3 + 20 wt.% ZnO) system. The morphological and structural properties of the mixed system were investigated by scanning electron microscopy, X-ray diffraction, inductively coupled plasma atomic emission, and X-ray photoelectron spectroscopy. The major phase was determined to be the ZnFe 2O 4 spinel with particle size of 11 nm. The magnetic properties of the material were investigated by ferromagnetic resonance (FMR) in the temperature range from liquid helium to room temperature. A very intense, asymmetric FMR signal from ZnFe 2O 4 nanoparticles was recorded, which has been analyzed in terms of two Callen-lineshape lines. Temperature dependence of the FMR parameters was obtained from fitting the experimental lines with two component lines. Analysis of the FMR spectra in terms of two separate components indicates the presence of strongly anisotropic magnetic interactions. © 2012 Versita Warsaw and Springer-Verlag Wien.
Συγγραφείς:
Guskos, N.
Glenis, S.
Typek, J.
Zolnierkiewicz, G.
Berczynski, P.
Wardal, K.
Guskos, A.
Sibera, D.
Moszyński, D.
Lojkowski, W.
Narkiewicz, U.
Περιοδικό:
Central European Journal of Physics
DOI:
10.2478/s11534-012-0013-3
