Title :
Magnetic Characterization of Co Doped Cu
O Layers
Author :
Brandt, I.S. ; Lima, E. ; Tumelero, M.A. ; Acuna, J.J.S. ; Viegas, A.D.C. ; Zysler, R.D. ; Pasa, A.A.
Author_Institution :
Dept. de Fis., Univ. Fed. de Santa Catarina, Florianopolis, Brazil
Abstract :
In this work we have studied the magnetic properties of room temperature electrodeposited Cu2O layers doped with Co. These layers showed anhysteretic ferromagnetic behavior with Curie temperature of 550 K. Structural characterization indicated the incorporation of Co+2 ions to the Cu2O lattice. No evidences for the existence of superparamagnetic particles and contaminations were observed, respectively, from (zero field cooling) ZFC and (field cooling) FC curves and (electron paramagnetic resonance) EPR measurements.
Keywords :
Curie temperature; cobalt; copper compounds; paramagnetic resonance; semiconductor materials; semimagnetic semiconductors; superparamagnetism; Cu2O:Co; Curie temperature; anhysteretic ferromagnetic behavior; contaminations; electrodeposited layers; electron paramagnetic resonance; magnetic properties; structural characterization; superparamagnetic particles; temperature 293 K to 298 K; temperature 550 K; zero field cooling; Copper; Doping; Lattices; Magnetization; Saturation magnetization; Temperature measurement; Zinc oxide; Copper oxide; diluted magnetic semiconductors; magnetization;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2011.2155639