Potassium niobate
= Potassium niobate
{wiki=Potassium_niobate}
Potassium niobate is a crystalline compound with the chemical formula \\( \\text\{KNbO\}_3 \\). It belongs to a class of materials known as ferroelectrics, which exhibit a spontaneous electric polarization that can be reversed by the application of an external electric field.