Microstructure and dynamics of magnetic iron nanoparticles aggregates in protein gels
author:
Konik Katarzyna , Fornal P., Okła Dorota , Stanek Jan
journal title:
Acta Physica Polonica. A
title of volume:
Selected papers presented at the 4th International Conference Photoinduced Phase Transitions and Cooperative Phenomena, June 28-July 02, 2011, Wrocław, Poland and Proceedings of the XLVIth Zakopane School of Physics, International Symposium Breaking Frontiers, Zakopane, Poland, May 16-21, 2011
The 60 nm metallic iron nanoparticles and its aggregates in gelatine gel were studied by means of optical microscopy, X-ray microtomography, atomic force scanning microscopy and the Mössbauer spectroscopy. The isolated nanoparticles in gel exhibit fast bounded diffusion described by Brownian movement. In the external magnetic field these magnetic particles form spectacular linear aggregates whose local dynamical and magnetic properties were determined from the Mössbauer spectra.
number of pulisher's sheets:
0,4
affiliation:
Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego
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