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|Type:||Artigo de periódico|
|Title:||Dielectric investigations in unconventionally processed TbMnO3 ceramics|
|Abstract:||TbMnO3 ceramics with enhanced dielectric properties were synthesized by an innovative route combining high-energy ball milling and hot-forging sintering. Dielectric investigations reveal the presence of two distinct relaxation processes: one thermally activated mostly due to dipolar effects and other related to the movement of polar clusters or electric dipoles. Long-range polar order was not achieved, as ferroelectricity in TbMnO3 is strongly dependent on the crystallographic direction. A distribution of relaxation times indicates a cooperative response of the electric dipoles. (c) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.|
|Editor:||Pergamon-elsevier Science Ltd|
|Citation:||Scripta Materialia. Pergamon-elsevier Science Ltd, v. 68, n. 5, n. 293, n. 296, 2013.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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