Low-frequency magnetoelectric interactions in single crystal and polycrystalline bilayers of lanthanum strontium manganite and lead zirconate titanate

Magnetoelectric Bi3.15Nd0.85Ti3O12–NiFe2O4 bilayer films derived by a SOL–GEL method

“…The physical mechanism of this behavior can be given by following discussions. The large ME effect may be arose from the AC field initiated from dynamic Joule magnetostriction, caused by low-fields domain wall motion and large-fields rotation [15]. This might explain the sharp increase of α E in the low field.…”

Ferroelectric, Dielectric, Ferromagnetic, and Magnetoelectric Properties of BNF-NZF Bilayer Nanofilms Prepared via Sol-Gel Process

“…As shown in Fig. 7 , the magnetoelectric coupling coefficient α E rockets with the increase of the dc bias magnetic field H dc provided by an electromagnet to eliminate the influence of the external magnetic field and the frequency-doubling effect caused by magnetostrictive materials and reaches to the vertex ( α BNF/NZF = 51.32, α NZF/BNF = 47.18, mV/cm·Oe −1 ) at 300 Oe where the effective magnetostrictive strain λ approaches its saturation [ 30 ]; then, it will produce a nearly constant electric field in the BNF ferroelectric phase, and thereby, α E descends gently to the bottom with the further increase of H dc . The value of α E is much higher than that of the Bi 3.15 Nd 0.85 Ti 3 O 12 -NiFe 2 O 4 bilayer films [ 24 ].…”

Temperature dependence of magnetoelectric effect in Bi3.15Nd0.85Ti3O12–La0.7Ca0.3MnO3 multiferroic composite films buffered by a LaNiO3 layer

“…51) for the BNT-LCMO lms at a low temperature might be due to the enhancement of the magnetic-mechanical-electric interactions between the magnetic and ferroelectric phases heteroepitaxially strained with each other across the interface. [54][55][56] Fig. 12 The ME voltage coefficient of BNT-LCMO composite thin films at different temperatures: (a) 300 K, (b) 200 K, and (c) 100 K.…”