作者: M. Fiebig , Th. Lottermoser , M. K. Kneip , M. Bayer
DOI: 10.1063/1.2172198
关键词: Multiferroics 、 Electric field 、 Condensed matter physics 、 Antiferromagnetism 、 Magnetoelectric effect 、 Phase transition 、 Materials science 、 Superexchange 、 Ferroelectricity 、 Ferromagnetism
摘要: The multiferroic rare-earth compounds RMnO3 with R=Ho–Yb are shown to be the source of “gigantic” magnetoelectric effects. Application static magnetic or electric field induces a phase transition antiferromagnetic reordering Mn3+ sublattice and ferromagnetic ordering in sublattices. An imbalance Mn3+–R3+ superexchange induced by ferroelectric distortion is revealed as microscopic origin effect.