Paper Title:
Magnetoelectric Effect in Multiferroic Perovskite-Oxide Composites
  Abstract

Magnetic, dielectric properties and magnetoelectric effect of ceramics with a composition of 0.9 BaTiO3-0.1 LaMnO3 have been investigated. X-ray diffraction measurements showed that the sintered ceramics are composites containing a small amount of (La, Ba)MnO3 phase in the BaTiO3 matrix. These composites were multiferroic, having ferromagnetic and ferroelectric Curie temperatures of 330 K and 392 K respectively. We found that the composite sintered at 1150 °C exhibits a reduction of spontaneous magnetization as large as 55 % at room temperature when an electric field of 1.4 KV/mm is applied. This reduction is probably ascribed to a change of hole concentration distribution in the precipitated ferromagnetic (La, Ba)MnO3 and the resultant decrease of ferromagnetic Curie temperature.

  Info
Periodical
Edited by
P. VINCENZINI
Pages
2514-2519
DOI
10.4028/www.scientific.net/AST.45.2514
Citation
M. Gomi, K. Ban, N. Nishimura, T. Yokota, "Magnetoelectric Effect in Multiferroic Perovskite-Oxide Composites", Advances in Science and Technology, Vol. 45, pp. 2514-2519, 2006
Online since
October 2006
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