Magnetoelectric and dielectric relaxation properties of the high Curie temperature composite Sr1.9Ca0.1NaNb5O15-CoFe2O4

W. C. Liu; Chee Leung Mak; K. H. Wong; C. Y. Lo; Siu Wing Or; W. Zhou; A. Hauser; F. Y. Yang; R. Sooryakumar

doi:10.1088/0022-3727/41/12/125402

Magnetoelectric and dielectric relaxation properties of the high Curie temperature composite Sr_1.9Ca_0.1NaNb₅O₁₅-CoFe₂O₄

W. C. Liu, Chee Leung Mak, K. H. Wong, C. Y. Lo, Siu Wing Or, W. Zhou, A. Hauser, F. Y. Yang, R. Sooryakumar

Research output: Journal article publication › Journal article › Academic research › peer-review

10 Citations (Scopus)

Abstract

A magnetoelectric (ME) composite ceramic 0.6Sr1.9Ca0.1NaNb5O15-0.4CoFe2O4(SCNN-CFO) was prepared by a conventional solid state reaction method. Remarkable dielectric constant dispersion with a Curie temperature of 270 °C was observed. This relaxor composite exhibits ferroelectric as well as ferrimagnetic hysteresis loops at room temperature. A significant ME coupling effect was observed. On the basis of our studies, it is demonstrated that the lead-free high Curie temperature SCNN-CFO relaxor composite material can be used in the future development of ME devices.

Original language	English
Article number	125402
Journal	Journal of Physics D: Applied Physics
Volume	41
Issue number	12
DOIs	https://doi.org/10.1088/0022-3727/41/12/125402
Publication status	Published - 21 Jun 2008

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Acoustics and Ultrasonics
Surfaces, Coatings and Films

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10.1088/0022-3727/41/12/125402

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title = "Magnetoelectric and dielectric relaxation properties of the high Curie temperature composite Sr1.9Ca0.1NaNb5O15-CoFe2O4",

abstract = "A magnetoelectric (ME) composite ceramic 0.6Sr1.9Ca0.1NaNb5O15-0.4CoFe2O4(SCNN-CFO) was prepared by a conventional solid state reaction method. Remarkable dielectric constant dispersion with a Curie temperature of 270 °C was observed. This relaxor composite exhibits ferroelectric as well as ferrimagnetic hysteresis loops at room temperature. A significant ME coupling effect was observed. On the basis of our studies, it is demonstrated that the lead-free high Curie temperature SCNN-CFO relaxor composite material can be used in the future development of ME devices.",

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T1 - Magnetoelectric and dielectric relaxation properties of the high Curie temperature composite Sr1.9Ca0.1NaNb5O15-CoFe2O4

AU - Liu, W. C.

AU - Mak, Chee Leung

AU - Wong, K. H.

AU - Lo, C. Y.

AU - Or, Siu Wing

AU - Zhou, W.

AU - Hauser, A.

AU - Yang, F. Y.

AU - Sooryakumar, R.

PY - 2008/6/21

Y1 - 2008/6/21

N2 - A magnetoelectric (ME) composite ceramic 0.6Sr1.9Ca0.1NaNb5O15-0.4CoFe2O4(SCNN-CFO) was prepared by a conventional solid state reaction method. Remarkable dielectric constant dispersion with a Curie temperature of 270 °C was observed. This relaxor composite exhibits ferroelectric as well as ferrimagnetic hysteresis loops at room temperature. A significant ME coupling effect was observed. On the basis of our studies, it is demonstrated that the lead-free high Curie temperature SCNN-CFO relaxor composite material can be used in the future development of ME devices.

AB - A magnetoelectric (ME) composite ceramic 0.6Sr1.9Ca0.1NaNb5O15-0.4CoFe2O4(SCNN-CFO) was prepared by a conventional solid state reaction method. Remarkable dielectric constant dispersion with a Curie temperature of 270 °C was observed. This relaxor composite exhibits ferroelectric as well as ferrimagnetic hysteresis loops at room temperature. A significant ME coupling effect was observed. On the basis of our studies, it is demonstrated that the lead-free high Curie temperature SCNN-CFO relaxor composite material can be used in the future development of ME devices.

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DO - 10.1088/0022-3727/41/12/125402

M3 - Journal article

SN - 0022-3727

VL - 41

JO - Journal of Physics D: Applied Physics

JF - Journal of Physics D: Applied Physics

IS - 12

M1 - 125402

ER -

Magnetoelectric and dielectric relaxation properties of the high Curie temperature composite Sr_1.9Ca_0.1NaNb₅O₁₅-CoFe₂O₄

Abstract

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