Structural and magnetic properties of epitaxial SnFe2O4 thin films
Epitaxial thin films of SnFe2O4 are deposited on sapphire substrate by ablating the sintered SnFe2O4 target with a KrF excimer laser (λ = 248 nm and pulsed duration of 20 ns). X-ray diffraction study reveals that SnFe2O4 films are epitaxial along (222) direction. The optical bandgap of SnFe2O4 film is estimated using transmittance vs. wavelength data and is observed to be 2.71 eV. The presence of hysteresis loop at room temperature in magnetization vs. field plot indicates the ferromagnetic behavior of the film. It is observed that the coercive field and remnant magnetization decrease with increase in temperature.
Physics, Astronomy, and Materials Science
thin films, SnFe2O4, pulsed laser deposition, ferromagnetic, bandgap
Gupta, R. K., K. Ghosh, and P. K. Kahol. "Structural and magnetic properties of epitaxial SnFe2O4 thin films." Materials Letters 65, no. 14 (2011): 2149-2151.