Authors: A N Tarale S R Jigajeni D J Salunkhe P B Joshi S B Kulkarni D M Phase R J Chaudhary S K Deshapande
Publish Date: 2011/06/25
Volume: 23, Issue: 2, Pages: 557-566
Abstract
The paper presents synthesis of Ba07Sr03TiO3 BST Ba07Sr03TiO3 BZT thin films and BZT/BST heterostructures using modified Pechini method The La07Sr03MnO3 has been used as a conducting bottom layer to form metal ferroelectric metal capacitor The thin films are spin coated on SiO2/nSi 100 substrates The thin films thus deposited are characterized for crystal structure morphology dielectric and complex impedance properties The results show that BZT/BST heterostructures show reduced loss tangent tan δ and useful value of figure of merit γ in RF range of frequencies The results on dielectric properties could be analyzed in terms of the Maxwell–Wagner Model and contribution due to superlattice effectsThe author here by acknowledge with thanks the help rendered by Dr V Ganeshan Asst Director UGCDAECSR Indore Madhya Pradesh India Dr PS Patil Shivaji University Kolhapur and Dr V L Mathe Pune University Pune for imaging using AFM and SEM respectively
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