Ferrimagnetic nanoparticles for self-controlled magnetic hyperthermia
1 University of Architecture, Civil
Engineering and Geodesy, Faculty of HydrotechnicsDepartment of
Physics, Hr. Smirnenski Blvd.
1, 1046 Sofia, Bulgaria
2 University of Forestry, Faculty of Forest Industry, Kl. Ohridsky Blvd. 10, 1756 Sofia, Bulgaria
3 University of Sofia, Department of Physics, J. Bouchier Blvd. 5, 1164 Sofia, Bulgaria
Received in final form: 30 September 2013
Published online: 28 November 2013
Based on the Heisenberg model including single-site uniaxial anisotropy and using a Green’s function technique we studied the influence of size and composition effects on the Curie temperature TC, saturation magnetization MS and coercivity HC of spherical nanoparticles with a structural formula Me1−xZnxFe2O4, Me = Ni, Cu, Co, Mn. It is shown that for x = 0.4–0.5 and d = 10–20 nm these nanoparticles have a TC = 315 K and are suitable for a self-controlled magnetic hyperthermia.
Key words: Mesoscopic and Nanoscale Systems
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag, 2013