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High Temperature Phase Transition Studies and Dielectric Properties of Sr2SbMnO6

Meher, Preethi KRS and Janolin, Pierre-Eymeric and Guiblin, Nicolas and Paramesh, Gadige and Varma, KBR (2012) High Temperature Phase Transition Studies and Dielectric Properties of Sr2SbMnO6. In: 56th DAE-Solid State Physics Symposium (SSPS), DEC 19-23, 2011 , SRM Univ, Kattankulathur, INDIA, pp. 137-138.

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Official URL: http://dx.doi.org/10.1063/1.4709919


Sr2SbMnO6 (SSMO) ceramics were, fabricated using the nanocrystalline powders obtained via molten salt synthesis (MSS) method. High temperature X-ray diffraction studies confirmed the structural phase transition (room temperature tetragonal (I4/mcm) to the cubic phase (Pm-3m)) temperature to be around 736K. The discontinuity in the phase transition indicated its first order nature reflecting the presence of ferroelectric-like distortions in SSMO prepared from MSS which seemed to be unique as it was not observed so far in the case of SSMO prepared using solid-state reaction method. The dielectric behavior of SSMO was studied in the 300-950 K temperature range at high frequencies (MHz range) in order to suppress the of space charge and related effects that dominate at such higher temperatures and mask the real phase transition.

Item Type: Conference Proceedings
Series.: AIP Conference Proceedings
Additional Information: Copyright for this article belongs to the AMER INST PHYSICS, USA.
Keywords: XRD;phase transition;dielectric
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Date Deposited: 04 Dec 2012 15:08
Last Modified: 04 Dec 2012 15:11
URI: http://eprints.iisc.ac.in/id/eprint/45114

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