Colossal Permittivity: the Fundamental Mechanism Behind Colossal Permittivity in Oxides (adv. Mater. 51/2019)

In article number 1904746, Steven P. Hepplestone and co-workers investigate the fundamental mechanism behind colossal permittivity exhibited in oxides. This unusual property is attributed to the formation of a thin metallic layer that forms between two insulating oxides, which becomes strongly polarized when under electric fields.