Composite domain walls in a multiferroic perovskite ferrite.

摘要: Controlling ferromagnetism by an external electric field has been a great challenge in materials physics, for example towards the development of low-power-consumption spintronics devices. To achieve an efficient mutual control of electricity and magnetism, the use of multiferroics—materials that show both ferroelectric and ferromagnetic/antiferromagnetic order—is one of the most promising approaches,,,. Here, we show that GdFeO3, one of the most orthodox perovskite oxides, is not only a weak ferromagnet but …