Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1652357 | Materials Letters | 2006 | 4 Pages |
Abstract
Bamboo charcoal particles coated with Ni0.5Zn0.5Fe2O4, forming a core-shell structure, were synthesized by hydrothermal method. A structural characterization by FTIR, XRD and TEM proved that nanometer-sized Ni0.5Zn0.5Fe2O4 in the composite was responsible for the ferromagnetic behavior of the composite. Effects of the bamboo charcoal and temperature on the magnetic properties of bamboo charcoal/Ni0.5Zn0.5Fe2O4 composite have been studied by ferromagnetic resonance (FMR) technique. The measuring temperature was varied from 220 to 460 K. A clear evolution from ferromagnetic resonance to paramagnetic resonance (EPR) was observed as a function of temperature, which is related with the passage through the Curie point (∼ 380 K).
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
K.H. Wu, Y.M. Shin, C.C. Yang, G.P. Wang, D.N. Horng,