Induced magnetoelectric coupling and photoluminescence response in solution-processed CoFe2O4/Pb0.6Sr0.4TiO3 multiferroic composite film

2017 ◽  
Vol 183 (1) ◽  
pp. 110-125 ◽  
Author(s):  
Kanchan Bala ◽  
Jyoti Shah ◽  
Nainjeet Singh Negi ◽  
Ravinder K. Kotnala
Keyword(s):  
Composite Film ◽  
Magnetoelectric Coupling ◽  
Solution Processed ◽  
Multiferroic Composite ◽  
Photoluminescence Response

The Determination of the Magnetoelectric Coupling Coefficient in Ferroelectric–Ferromagnetic Composite Based on PZT–Ferrite

2013 ◽  
Vol 58 (4) ◽  
pp. 1401-1403 ◽  
Author(s):  
J.A. Bartkowska ◽  
R. Zachariasz ◽  
D. Bochenek ◽  
J. Ilczuk
Keyword(s):  
Dielectric Permittivity ◽  
Coupling Coefficient ◽  
Mean Field ◽  
Field Approximation ◽  
Theoretical Description ◽  
Magnetoelectric Coupling ◽  
Mean Field Approximation ◽  
Dielectric Measurements ◽  
Temperature Dependences ◽  
Multiferroic Composite

Abstract In the present work, the magnetoelectric coupling coefficient, from the temperature dependences of the dielectric permittivity for the multiferroic composite was determined. The research material was ferroelectric-ferromagnetic composite on the based PZT and ferrite. We investigated the temperature dependences of the dielectric permittivity (") for the different frequency of measurement’s field. From the dielectric measurements we determined the temperature of phase transition from ferroelectric to paraelectric phase. For the theoretical description of the temperature dependence of the dielectric constant, the Hamiltonian of Alcantara, Gehring and Janssen was used. To investigate the dielectric properties of the multiferroic composite this Hamiltonian was expressed under the mean-field approximation. Based on dielectric measurements and theoretical considerations, the values of the magnetoelectric coupling coefficient were specified.

Magnetoelectric coupling in oxygen deficient La 0.67 Sr 0.33 MnO 3-δ /BaTiO 3 composite film

2018 ◽  
Vol 534 ◽  
pp. 141-144 ◽  
Author(s):  
Jianyuan Wang ◽  
Zhuokun Han ◽  
Jianying Bai ◽  
Bingcheng Luo ◽  
Changle Chen
Keyword(s):  
Composite Film ◽  
Magnetoelectric Coupling

On Eshelby's S-tensor under various magneto-electro-elastic constitutive settings, and its application to multiferroic composites

2016 ◽  
Vol 01 (03n04) ◽  
pp. 1640002 ◽  
Author(s):  
Yang Wang ◽  
George J. Weng
Keyword(s):  
Effective Properties ◽  
General Procedure ◽  
Constitutive Relations ◽  
Magnetoelectric Coupling ◽  
Coupling Coefficients ◽  
Multilayer Composites ◽  
Inclusion Shape ◽  
Multiferroic Composite ◽  
Tensor Formula ◽  
Elastic Composites

The magneto-electro-elastic Eshelby S-tensor is the key to the study of linear effective properties of magneto-electro-elastic composites. There are eight different ways to write the constitutive relations, and each is associated with a specific kind of boundary condition and Eshelby S-tensor. In this work, we provide a general procedure to convert the magneto-electro-elastic Eshelby S-tensor from one system to another. As an application, we use it to calculate the magnetoelectric coupling coefficients of a piezoelectric–piezomagnetic multiferroic composite under stress-and strain-prescribed boundary conditions. We demonstrate that the calculated results are significantly different. In particular, it is shown that, under an applied stress, the magnetoelectric coupling coefficient [Formula: see text], is much stronger than that under an applied strain, while for [Formula: see text], the values are positive under a prescribed stress but negative under a prescribed strain. The effects of inclusion shape, volume concentration and geometrical exchange, are also examined. For ready applications, the explicit forms of S-tensor, [Formula: see text] and [Formula: see text], of 1-3 fibrous and 2-2 multilayer composites are also provided at the end.

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