Fabrication and structure studies of Co:BaTiO3nano composite thin films
Co:BaTiO3纳米复合薄膜的制备及其结构

Co:BaTiO 3 nano_composite thin films on single_crystal magnesia(100) were succ essfully fabricated by pulsed laser deposition. The morphology and microstructur e of the thin films were investigated via atomic force microscope, x_ray diffrac t ometer and Raman spectroscopy. The results show that the thin films consisted of a highly c_axis oriented tetragonal phase. The surfaces of the thin films w ere uniform, compact and of atomic smoothness (RMS=0\^15nm). The co particles, of mo nodisperse distribution, were found to be well dispersed in the matrix Co:BaTiO 3. With increasing Co grain size, the intensities of Raman peaks were weakened and their width broadened.