non-centrosymmetry in physics

Non-centrosymmetry in physics refers to a property of a material where its structure lacks a center of symmetry—meaning it doesn't look the same when inverted through a point. If you imagine flipping the material inside out, a non-centrosymmetric material's structures or properties change, leading to unique behaviors like piezoelectricity (generating voltage under pressure) or certain optical effects. This asymmetry influences how the material interacts with electromagnetic waves and fields, making it important for specialized electronic, optical, and sensing applications.