کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1459118 | 989590 | 2016 | 6 صفحه PDF | دانلود رایگان |
The effect of annealing on structural and magnetic properties of the RF sputtered BaTiO3 and Co, Nb co-doped BaTiO3 thin films on Si (001) substrates were studied. The structure of the as-deposited (amorphous) films was changed into cubic perovskite phase during the in-situ X-ray diffraction from room temperature to 900 °C. The enhancement of crystalline quality with respect to the increase of annealing temperature was observed by the in-situ XRD. The magnetic properties of the films before and after annealing were studied by the measurement of Magneto-Optic Kerr Effect (MOKE). The pure BaTiO3 revealed a paramagnetic behavior, whereas the Co and Nb co-doped BaTiO3 films exhibited room temperature ferromagnetism. The increase in ferromagnetic response was observed in the Co and Nb co-doped BaTiO3 films annealed at 900 °C rather than the as-deposited film.
Journal: Ceramics International - Volume 42, Issue 3, 15 February 2016, Pages 3882–3887