Solvent Driven Magnetic Order Change in Graphene Decorated with α-Fe2O3 Nanoparticles |
| L. Kilanskia, M. Arciszewskaa, R. Jedrzejewskib, D. Siberac, A. Jedrzejewskac
aInstitute of Physics, Polish Academy of Sciences, Aleja Lotnikow 32/46, PL-02668 Warsaw, Poland bInstitute of Materials Science and Engineering, Faculty of Mechanical Engineering and Mechatronics, West Pomeranian University of Technology, Szczecin, Poland cInstitute of Chemical and Environment Engineering, West Pomeranian University of Technology, Szczecin, Poland |
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| We present the studies of the structural and magnetic properties of nanocomposites based on graphene decorated with 25% α-Fe2O3 nanoparticles made with the use of either ethanol or acetone. We observed the presence of superparamagnetic blocking of the α-Fe2O3 nanoparticles at blocking temperature, TB=46.4 K or 159 K, for the samples made with the use of either ethanol or acetone, respectively. Our magnetization and magnetic susceptibility data revealed the presence of strong inter-particle interactions in our samples. The magnetic properties of our samples depend strongly on the type of solvent used for the sample preparation. |
DOI:10.12693/APhysPolA.134.954 topics: gaphene, composites, magnetic properties |