Jurnal Teori dan Aplikasi Fisika
Vol 1, No 2 (2013): Jurnal Teori dan Aplikasi Fisika

Pengaruh Variasi doping Lantanum pada Barium Titanat (Ba1-xLaxTiO3) terhadap Struktur Mikro dan Sifat Ferroelektrik

N. Nurhadi, A. Jamaluddin, Y. Iriani (Unknown)



Article Info

Publish Date
12 Oct 2013

Abstract

Deposition of thin films based ferroelectric materials barium titanate (BaTiO) doped lanthanum (BaLa1-xTiOx33) with mole variation of lanthanum (x) 1%, 3% and 5% were successfully grown on Pt/Si substrate by chemical solution deposition (CSD) method and it was prepared with spin coater process. Deposition of BaTiO and Ba3La1-xTiOthin films used temperature 800°C and holding time for 3 hours. The result characterization used X-Ray apparatus showed increase of lanthanum composition on crystal stucture barium titanate caused the diffraction angle shifts to the right (bigger) and intensity value increase. The result of GSAS software showed that lattice parameter and crystal volume decrease along with the increase of lanthanum composition on barium titanate structure. Scanning Electron Microscopy (SEM) characterization result showed that grain size decrease along with the increase of lanthanum mole dopant and average thickness of thin films about 300 nm. The result of Sawyer Tower method showed that all sampels are ferroelectric materials. The increase of lanthanum mole dopant caused coercive field smaller and remanent polarization bigger. Keyword: BaTiO3, crystal structure, ferroelectric, GSAS, lattice parameter.

Copyrights © 2013






Journal Info

Abbrev

jtaf

Publisher

Subject

Materials Science & Nanotechnology Physics

Description

Jurnal ini diterbitkan oleh Jurusan Fisika Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Lampung sebagai sarana untuk mempublikasikan hasil penelitian, artikel review dari peneliti-peneliti di bidang fisika teori dan aplikasinya. Jurnal ini terbit dua kali setahun (Januari dan ...