On Ferrotoroidics and Electrotoroidic, Magnetotoroidic and Piezotoroidic Effects

摘要

Some historical aspects of the discovery of the "axio-polar" (time-odd polar) vector, its appearance as an anapole moment in atomic nuclei and in the form of a spontaneous toroidal moment in "ferrotoroidic" crystals and domains are discussed. The related linear and bilinear electrotoroidic" and "magnetotoroidic" effects, as well as the "piezotoroidic" and linear -toroido-optic effect" are postulated.