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Relaxor materials are of great interest for device applications understanding of ferroelectric systems. In complex perovskites (AA)(BB)O3, the relaxor ferroelectric materials exhibit a large range of interesting properties because of complex order/disorder structures. Most relaxor ferroelectrics belong to family of complex lead- based perovskite oxides. These materials have a disadvantage due to toxicity and volatility of polluting substances. Among the lead free compositions with perovskite structure Barium Zirconium Titanate is chosen to be one of the promising material. The aim of the...