Magnetic transition in La1/3Nd1/3Ca1/3MnO3 perovskite induced by electric field at a given magnetic field

We report the discovery of new effect in La1/3Nd1/3Ca1/3MnO3 - the jump of magnetization induced by external electric field E (2.5-4)V/cm at a given m agnetic field H (18-25) kOe at T = 4.2 K. This effect is large when compare d with a metamagnetic transition induced by the magnetic field in many subs tances. The origin of the magnetisation jump induced by external electric f ield has not yet been explained. We assume that this transition is induced by the hopping of E-excited ep electrons and that this is a source of a jum pwise increase in magnetization in the non-collinear magnetic phase within the perovskite. This effect can be attributed to a strong coupling between carriers induced by the electric field (the conduction electrons eg), and t he local magnetic moments (t(2g)-localized spins) through a mechanism of th e Zener double exchange.