Microstructure Characterization and Dielectric Properties of La4Mg3W3O18 Layered Oxide

Dimitry D. Khalyavin; Ana Maria R. Senos; Pedro Q. Mantas

doi:10.4028/www.scientific.net/MSF.514-516.255

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HomeMaterials Science ForumMaterials Science Forum Vols. 514-516Microstructure Characterization and Dielectric...

Microstructure Characterization and Dielectric Properties of La₄Mg₃W₃O₁₈ Layered Oxide

Abstract:

The microstructure development and the dielectric properties of La4Mg3W3O18 layered oxide were investigated. A strong anisotropic grain growth is revealed in ceramics sintered above 1400oC. The anisotropy of the grain reflects the anisotropic character of the crystal structure. Dielectric measurements yield a relative dielectric permittivity, ε, and a temperature coefficient of the dielectric permittivity, TC ε, to be 21 and 95 ppm K-1, respectively. The positive value of TC ε is assumed to be caused by the octahedral tilting by analogy with the behaviour of other complex ordered perovskites.

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Materials Science Forum (Volumes 514-516)

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255-258

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https://doi.org/10.4028/www.scientific.net/MSF.514-516.255

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May 2006

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Dimitry D. Khalyavin, Ana Maria R. Senos, Pedro Q. Mantas

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Ionic Ordering, Microwave Ceramic, Perovskite Oxide

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References

[1] R.J. Cava: J. Mater. Chem. Vol. 11 (2001), p.54.

Google Scholar

[2] P.K. Davies, J. Tong and T. Negas: J. Am. Ceram. Soc. Vol. 80 (1997), p.1727.

Google Scholar

[3] M.A. Akbas and P.K. Davies: J. Am. Ceram. Soc. Vol. 81 (1998), p.670.

Google Scholar

[4] E.L. Colla, I.M. Reaney, N. Setter: J. Appl. Phys. Vol. 74 (1993), p.3414.

Google Scholar

[5] I.M. Reaney, E.L. Colla and N. Setter: Jpn. J. Appl. Phys. Vol. 33 (1994), p.3984.

Google Scholar

[6] D.D. Khalyavin, A.M.R. Senos, P.Q. Mantas: J. Phys. Cond. Matter, Vol. 17 (2005), p.2585.

Google Scholar

[7] B.W. Hakki and P.D. Coleman, IRE Trans. Microwave Theory Tech. Vol. 8 (1960), p.402.

Google Scholar

[8] Y. Kobayashi and M. Katoh, IEEE Trans. Microwave Theory Tech. Vol. 33 (1985), p.586.

Google Scholar

[9] R. Zurmuhlen, J. Petzelt, S. Kamba, V.V. Voitsekhtovskii, E. Colla, N. Setter: J. Appl. Phys. Vol. 77 (1995), p.5341.

Google Scholar

[10] R. Zurmuhlen, J. Petzelt, S. Kamba, G. Kozlov, A. Volkov, B. Gorshunov, D. Dube, A. Tagantsev, N. Setter: J. Appl. Phys. Vol. 77 (1995), p.5351.

Google Scholar

[11] O. Bidault, M. Maglione, M. Actis, M. Kchikech, B. Salce: Phys. Rev. Vol. 52 (1995), p.4191.

DOI: 10.1103/physrevb.52.4191

Google Scholar