Electrical control of magnetism induced by interfacial orbital reconstruction

摘要

We report the reversible orbital reconstruction driven by ferroelectric polarization modulates the magnetic performance of ferroelectric/ferromagnetic heterostructure. Inplane Mn orbital occupancy and related interfacial magnetic state are enhanced and weakened by the negative and positive electric-field, respectively. With the aid of ionic liquid, the modulation of magnetism extends to bulk part of the ferromagnet. Our finding not only shows the role of orbits on electrical control of magnetism, but also makes the orbits straight forward to the application in microelectronic device.