Magnetic Properties of Bacterial Nanoparticles |
| M. Timko a, A. Džarová a, J. Kováč a, P. Kopčanský a, H. Gojzewski b,c and A. Szlaferek d
a Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 04001 Košice, Slovakia b Institute of Physics, Poznań University of Technology, Nieszawska 13A, 60-965 Poznań, Poland c Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany d Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland |
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| The objective of this study is to prepare and study magnetic properties of biological magnetic nanoparticles (magnetosomes) as a product of biomineralization process of magnetotactic bacteria Magnetospirillum sp. AMB-1. From temperature dependence of remanent magnetization and coercive field the Verwey transition is clearly seen at 105 K as a consequence of the large anisotropy along the chains of magnetosomes. |
| DOI: 10.12693/APhysPolA.115.381 PACS numbers: 47.65.Cb, 51.60.+a, 75.30.Gw, 75.50.Tt, 75.60.Nt, 75.60.Ej, 75.75.+a |