High energy‐resolution EELS of ferroelectric and paraelectric BaTiO3 phases

BaTiO 3 (BTO) is a widely studied material with several potential applications as a result of its intrinsic ferroelectricity. It undergoes multiple structural phase transitions across a range of accessible temperatures, which have an effect on its ferroelectric properties. While BTO is ferroelectric in its low‐temperature phases—rhombohedral below ∼183 K, orthorhombic in the range ∼183–273 K, and tetragonal in the range ∼273–393 K;  it becomes …