Fig. 5: Electric-field control of magnetic properties.
From: Emergent electric field control of phase transformation in oxide superlattices

a Magnetic hysteresis loops of a superlattice under ILG, probed with in situ magneto-optic Kerr effect (MOKE). An offset is applied for illustration. b Magnetic hysteresis loops and c temperature dependence of magnetization of the superlattice during voltage cycling, probed with ex situ SQUID magnetometry. All measurements were performed along the out-of-plane direction, which is the magnetic easy axis due to interface perpendicular magnetic anisotropy. A field of 0.2 T was applied to obtain results in (c).