Preparation and Dielectric Behaviour of Magnetoelectric HoMnO3-BaTiO3 Composites

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Abstract:

In this work, we report the magnetoelectric HoMnO3-BaTiO3 composites prepared by the solid-state reaction method. X-ray diffraction and scanning electron microscopy were used to characterize the phase composition and structures of the composites. The material/impedance analyzer was used to investigate the dielectric properties of the composites. It is shown that the composite consists of both ferroelectric ordering and magnetic ordering. The addition of BaTiO3 decreases the antiferromagnetic phase transformation temperature of the HoMnO3, indicating that there exists the coupling interaction between BaTiO3 and HoMnO3 phases.

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Key Engineering Materials (Volumes 334-335)

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1021-1024

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March 2007

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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[1] M. Fiebig, D. Fröhlich, K. Kohn, St. Leute, Th. Lottermoser, V. V. Pavlov and R. V. Pisarev: Phys. Rev. Lett. 84 (2000), p.5620.

DOI: 10.1103/physrevlett.84.5620

Google Scholar

[2] B. Lorenz, Y. Q. Wang, Y. Y. Sun and C. W. Chu: Phys. Rev. B. 70 (2004), p.212412.

Google Scholar

[3] F. Yen, C. R. dela Cruz, B. Lorenz, Y. Y. Sun, Y. Q. Wang, M. M. Gospodinov and C. W. Chu: Phys. Rev. B 71 (2005), p.180407(R).

Google Scholar

[4] B. Lorenz, A. P. Litvinchuk, M. M. Gospodinov and C. W. Chu: Phys. Rev. Lett. 92 (2004), p.087204.

Google Scholar

[5] Th. Lottermoser and M. Fiebig: Phys. Rev. B. 70 (2004), p.220407.

Google Scholar

[6] J. van SUCHTELEN: Philips Res. Rep. 27 (1972), p.28.

Google Scholar

[7] J. Y. Zhai, N. Cai, L. Liu, Y. H. Lin and C. W. Nan: Mater. Sci. Eng. B 99 (2003), p.329.

Google Scholar

[8] J. Ryu, S. Priya, A. V. Carazo and K. Uchino: J. Am. Cera. Soc. 84 (2001), p.2905.

Google Scholar

[9] J. C. Maxwell: Electricity and magnetism (Oxford University Press, London 1973).

Google Scholar

[10] K. W. Wagner: Ann. Phys. 40 (1993), p.818.

Google Scholar

[11] M. A. EI Hiti: J. Magn. Magn. Mater. 164 (1996), p.187.

Google Scholar

[12] K. K. Patanker: Ph. D Thesis. Synthesis and characterization of magnetoelectric composite (Shivaji University, Kolhapur 2001).

Google Scholar