| 초록 |
It was reported that (Bi,La)4Ti3O12 (BLT) thin film, La substituted BTO thin film, prepared by pulsed laser ablation show fatigue free behavior . From this report, we wanted to know the structure change when La was substituted and if Ce which has smaller ionic radii than La is substituted instead of La (BCT) crystal structure of BTO will change. In the previous report, crystal structure of BTO was determined to have the space group of B2cb and other report suggested that BLT has the space group of I4/mmm. In this research, we synthesised ferroelectric Bi3.5A0.5Ti3O12 (A=La, Ce) powder by sol-gel method for structure analysis using XRD. |
