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CoFe2O4 thin films deposited by PLD with in situ heating and post annealing

G. DASCALU1, O. F. CALTUN1,*

Affiliation

  1. Faculty of Physics, Al.I.Cuza University, Iasi, Romania

Abstract

Cobalt ferrite thin films are receiving increasing interest due to their high coercive field, high Curie temperature and chemical stability. Different values of the coercive field can be obtained by modifying the temperature of the substrate and the pressure of the O2 gas introduced in the chamber. For target ablation we used an excimer laser with a pulse energy of 60mJ, at a repetition rate of 10Hz. Structural, chemical and magnetic properties were investigated through XRD, XPS, AFM, SEM and VSM analysis. For the spinel phase formation a thermal treatment in air atmosphere at 900o C for 2 hours was applied..

Keywords

Pulsed laser deposition, Magnetic measurements, Magnetoelastic stress anisotropy constant.

Submitted at: Aug. 1, 2011
Accepted at: Sept. 15, 2011

Citation

G. DASCALU, O. F. CALTUN, CoFe2O4 thin films deposited by PLD with in situ heating and post annealing, Journal of Optoelectronics and Advanced Materials Vol. 13, Iss. 9, pp. 1145-1148 (2011)