Magnetoelectric and magnetodielectric properties of (1-x)Ba0.6Sr0.4TiO3-(x)La0.7Ca0.3MnO3 composites

T. Bonaedy; K. M. Song; K. D. Sung; N. Hur; J. H. Jung

doi:10.1016/j.ssc.2008.09.025

Magnetoelectric and magnetodielectric properties of (1-x)Ba_0.6Sr_0.4TiO₃-(x)La_0.7Ca_0.3MnO₃ composites

T. Bonaedy, K. M. Song, K. D. Sung, N. Hur, J. H. Jung

Inha University

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

We have investigated the magnetoelectric and magnetodielectric properties of (1-x)Ba_0.6Sr_0.4TiO₃-(x)La_0.7Ca_0.3MnO₃ composites, where constituent Ba_0.6Sr_0.4TiO₃ and La_0.7Ca_0.3MnO₃ have nearly the same ferroelectric (T_{C E} ∼ 270 K) and ferromagnetic (T_{C M} ∼ 275 K) Curie temperatures. Below a percolation-limit sample, i.e., x = 0.05, we have observed a decrease of electrical polarization and an increase of dielectric constant with strong frequency dependences near T_{C M} when we turn on the magnet. On the other hand, we have observed little change of electrical polarization and a decrease of dielectric constant without frequency dependences at 10 K. We have attributed the observed magnetoelectric and magnetodielectric properties to the extrinsic magnetoresistance origin near T_{C M} and to the strain-induced magnetoelectric coupling at 10 K.

Original language	English
Pages (from-to)	424-427
Number of pages	4
Journal	Solid State Communications
Volume	148
Issue number	9-10
DOIs	https://doi.org/10.1016/j.ssc.2008.09.025
State	Published - Dec 2008

Bibliographical note

Funding Information:
The authors would like to thank Dr. J. H. Cho and Dr. Y. H. Jo in KBSI for their helps in magnetization measurements. This work was supported by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD) (KRF-2005-070-C00053). This work is supported by the KICOS in No. K20602000008 (N. Hur).

Keywords

A. Ferroelectric-ferromagnetic composite
D. Magnetodielectric property
D. Magnetoelectric property

Access to Document

10.1016/j.ssc.2008.09.025

Cite this

@article{9795f2d749cc4609b01e58e228685bd0,

title = "Magnetoelectric and magnetodielectric properties of (1-x)Ba0.6Sr0.4TiO3-(x)La0.7Ca0.3MnO3 composites",

abstract = "We have investigated the magnetoelectric and magnetodielectric properties of (1-x)Ba0.6Sr0.4TiO3-(x)La0.7Ca0.3MnO3 composites, where constituent Ba0.6Sr0.4TiO3 and La0.7Ca0.3MnO3 have nearly the same ferroelectric (TC E ∼ 270 K) and ferromagnetic (TC M ∼ 275 K) Curie temperatures. Below a percolation-limit sample, i.e., x = 0.05, we have observed a decrease of electrical polarization and an increase of dielectric constant with strong frequency dependences near TC M when we turn on the magnet. On the other hand, we have observed little change of electrical polarization and a decrease of dielectric constant without frequency dependences at 10 K. We have attributed the observed magnetoelectric and magnetodielectric properties to the extrinsic magnetoresistance origin near TC M and to the strain-induced magnetoelectric coupling at 10 K.",

keywords = "A. Ferroelectric-ferromagnetic composite, D. Magnetodielectric property, D. Magnetoelectric property",

author = "T. Bonaedy and Song, {K. M.} and Sung, {K. D.} and N. Hur and Jung, {J. H.}",

note = "Funding Information: The authors would like to thank Dr. J. H. Cho and Dr. Y. H. Jo in KBSI for their helps in magnetization measurements. This work was supported by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD) (KRF-2005-070-C00053). This work is supported by the KICOS in No. K20602000008 (N. Hur).",

year = "2008",

month = dec,

doi = "10.1016/j.ssc.2008.09.025",

language = "English",

volume = "148",

pages = "424--427",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier Ltd.",

number = "9-10",

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T1 - Magnetoelectric and magnetodielectric properties of (1-x)Ba0.6Sr0.4TiO3-(x)La0.7Ca0.3MnO3 composites

AU - Bonaedy, T.

AU - Song, K. M.

AU - Sung, K. D.

AU - Hur, N.

AU - Jung, J. H.

N1 - Funding Information: The authors would like to thank Dr. J. H. Cho and Dr. Y. H. Jo in KBSI for their helps in magnetization measurements. This work was supported by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD) (KRF-2005-070-C00053). This work is supported by the KICOS in No. K20602000008 (N. Hur).

PY - 2008/12

Y1 - 2008/12

N2 - We have investigated the magnetoelectric and magnetodielectric properties of (1-x)Ba0.6Sr0.4TiO3-(x)La0.7Ca0.3MnO3 composites, where constituent Ba0.6Sr0.4TiO3 and La0.7Ca0.3MnO3 have nearly the same ferroelectric (TC E ∼ 270 K) and ferromagnetic (TC M ∼ 275 K) Curie temperatures. Below a percolation-limit sample, i.e., x = 0.05, we have observed a decrease of electrical polarization and an increase of dielectric constant with strong frequency dependences near TC M when we turn on the magnet. On the other hand, we have observed little change of electrical polarization and a decrease of dielectric constant without frequency dependences at 10 K. We have attributed the observed magnetoelectric and magnetodielectric properties to the extrinsic magnetoresistance origin near TC M and to the strain-induced magnetoelectric coupling at 10 K.

AB - We have investigated the magnetoelectric and magnetodielectric properties of (1-x)Ba0.6Sr0.4TiO3-(x)La0.7Ca0.3MnO3 composites, where constituent Ba0.6Sr0.4TiO3 and La0.7Ca0.3MnO3 have nearly the same ferroelectric (TC E ∼ 270 K) and ferromagnetic (TC M ∼ 275 K) Curie temperatures. Below a percolation-limit sample, i.e., x = 0.05, we have observed a decrease of electrical polarization and an increase of dielectric constant with strong frequency dependences near TC M when we turn on the magnet. On the other hand, we have observed little change of electrical polarization and a decrease of dielectric constant without frequency dependences at 10 K. We have attributed the observed magnetoelectric and magnetodielectric properties to the extrinsic magnetoresistance origin near TC M and to the strain-induced magnetoelectric coupling at 10 K.

KW - A. Ferroelectric-ferromagnetic composite

KW - D. Magnetodielectric property

KW - D. Magnetoelectric property

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