An oxide with a perovskite structure. Near room temperature its tetragonal phase has switchable electric polarization and is ferroelectric. Its higher-temperature cubic phase is paraelectric.
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Barium titanate (BaTiO₃) is a ceramic compound that possesses unique ferroelectric, piezoelectric, and dielectric properties, making it valuable in a variety of applications. It is formed from barium (Ba) and titanium (Ti) oxides and crystallizes in the perovskite structure.