Emergent ferroelectricity in disordered tri-color multilayer structure comprised of ferromagnetic manganites
Niu Li-Wei, Chen Chang-Le†, , Dong Xiang-Lei, Xing Hui, Luo Bing-Cheng, Jin Ke-Xin
       

Magnetic, dielectric and magnetoelectric measurements. (a) Field-cooled temperature dependence of magnetization for sample 1. Magnetic field of 100 Oe is applied parallel to the film surface. (b) Field dependence of magnetization of the multilayer structure at 50 K for sample 1. (c) Temperature dispersion of the dielectric constant (ε) at different frequencies for sample 2. (d) Magnetic field induced variations of the dielectric constant at different temperatures and a frequency of 10 kHz for sample 2.