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Abstrak :
[ABSTRAK
Pada penelitian ini, sifat listrik material Ba(Fe,Ti)O3 diuji dengan spektroskopi impedansi. Pembuatan material perovskite Ba(Fe,Ti)O3 dilakukan menggunakan metode solid state reaction. Hasil XRD menunjukkan bahwa semua sampel adalah single fasa. Penambahan Fe pada BaTiO3 menyebabkan perubahan struktur kristal dari tetragonal (space groupP4/mmm) menjadi hexagonal (space group P63/mmc). Penambahan Fe pada BaTiO3 menyebabkan peningkatan grain size yang dikonfirmasi dengan menggunakan Scanning Electron Microscope (SEM). Sifat listrik (impedansi sebagai fungsi frekuensi) pada material Ba(Fe,Ti)O3 menunjukkan adanya konstribusi grain dan grain boundary. Hasil Differential Scanning Calorimetric (DSC) menunjukkan bahwa penambahan Fe pada BaTiO3 menyebabkan peningkatan temperatur Curie dari suhu ~1200C pada BaTiO3 menjadi suhu ~1700C-1750C pada Ba(Fe,Ti)O3.;A study on impedance spectroscopy of Ba(Fe,Ti)O3 has been done. In this research, electrical behavior ware analysed by using impedance spectroscopy method. Ba(Fe,Ti)O3 prepared by solid state reaction method. XRD characterization shows that all sampel are single phase.

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ABSTRACT With Fe addition, the crystal structure change from tetragonal (without Fe) (space groupP4/mmm) to hexagonal (space group P63/mmc). The grain size increase with increasing of Fe contained in BaTiO3 which is confirmed by Scanning Electron Microscope (SEM). Electrical behavior (impedance as a function of frequency) of Ba(Fe,Ti)O3 shows grain and grain boundary contribution. Differential Scanning Calorimetric (DSC) shows that with Fe addition, the Curie temperature increases from ~ 1200C in BaTiO3 to ~1700C-1750C in Ba(Fe,Ti)O3., A study on impedance spectroscopy of Ba(Fe,Ti)O3 has been done. In this research, electrical behavior ware analysed by using impedance spectroscopy method. Ba(Fe,Ti)O3 prepared by solid state reaction method. XRD characterization shows that all sampel are single phase. With Fe addition, the crystal structure change from tetragonal (without Fe) (space groupP4/mmm) to hexagonal (space group P63/mmc). The grain size increase with increasing of Fe contained in BaTiO3 which is confirmed by Scanning Electron Microscope (SEM). Electrical behavior (impedance as a function of frequency) of Ba(Fe,Ti)O3 shows grain and grain boundary contribution. Differential Scanning Calorimetric (DSC) shows that with Fe addition, the Curie temperature increases from ~ 1200C in BaTiO3 to ~1700C-1750C in Ba(Fe,Ti)O3.]