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https://doi.org/10.1016/j.jallcom.2013.12.167

has been cited by the following article:

• TITLE: Preparation and Characterization of La2O3 Doped Ba0.3Sr0.7TiO3 Perovskite Ceramics of Varied Sintering Temperature and Doping

  AUTHORS: Sanchita Dewanjee, Rajib Chandra Das, Muhammed Yusuf Miah

  KEYWORDS: Barium Strontium Titanate, Lanthanum Oxide, Ceramics, Dielectric Constant, Conductivity, Impedance

  JOURNAL NAME: Advances in Materials Physics and Chemistry, Vol.10 No.11, November 4, 2020

  ABSTRACT: In order to explore new application opportunities of Barium Strontium Titanate (BST) ceramic composite by modifying the conventional ferroelectric properties of BST through La2O3 doping in BST matrix sintered at different temperature was investigated in this current study. Unadulterated Ba0.3Sr0.7TiO3 (BST) matrix was prepared from BaTiO3 (99.95%) and SrTiO3 (99.95%) taken in stoichiometric extents which later doped by La2O3 (99.99%) in varying extents (0.05 g, 0.10 g and 0.15 g) exploiting solid state reaction route. Doping caused drag effect for the penetration of impurities and sintering temperature helped the impurities migration to BST. Dielectric constant gets lower with rising of frequency, as electrons do not get enough time to polarize at high frequency. Dielectric constant and conductance are found maximum for the sample (0.1 g La2O3 doped BST) sintered at 1460°C and reverse is found in impedance analysis. These electrical properties showed visible frequency dependent response irrespective of sintering temperature and doping.