Abstract
We report the magnetoelectric properties of La0.7Sr0.3MnO3–BaTiO3 core–shell nanostructure synthesized by sol–gel method. X-ray diffraction analysis suggests that the BaTiO3 undergoes large strain in the core–shell structure which can be attributed to lattice induced strain. Interestingly, the core–shell nanoparticle exhibits enhanced magnetization (143emu/g) compared to the ferromagnetic La0.7Sr0.3MnO3 bare core (20emu/g). The core–shell structure also exhibits inherent magnetoelectric coupling which is reflected as an anomaly at the ferroelectric transition in the magnetization measurement. The direct magnetoelectric measurement on La0.7Sr0.3MnO3–BaTiO3 nanocomposite revealed the magnetoelectric voltage coefficient value as 54.5mV/cmOe at 1kOe, which is a promising result compared to the other perovskite based nanocomposites.
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