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dc.contributor.authorS. Wongsaenmaien_US
dc.contributor.authorK. Kanchiangen_US
dc.contributor.authorS. Chandaraken_US
dc.contributor.authorY. Laosiritawornen_US
dc.contributor.authorS. Rujirawaten_US
dc.contributor.authorR. Yimnirunen_US
dc.description.abstractIn this study, ceramics in Mn-doped ((Ka0.5Na0.5)0.935Li0.065)NbO3ceramics (Mn content = 0.25, 0.50, 1.00 and 1.50 mol%) were successfully prepared by the conventional mixed-oxide technique. The crystal structure was identified by XRD as a single-phase perovskite structure with tetragonal symmetry. The valence of Mn ions, characterized by the synchrotron XAS technique, was seen to change from Mn4+to Mn3+during the formation of the crystal. The valence state of Mn strongly affected the crystal structure and ferroelectric properties of the ceramics. The ferroelectric parameters show the decrease of remnant polarization and the increase of the coercive field with increasing MnO2content. The results confirm the Mn3+in KNNL perovskite lattices, leading to the formation of oxygen vacancies and hardening effects. © 2011 Elsevier B.V. All rights reserved.en_US
dc.subjectMaterials Scienceen_US
dc.subjectPhysics and Astronomyen_US
dc.titleCrystal structure and ferroelectric properties of Mn-doped ((Ka<inf>0.5</inf>Na<inf>0.5</inf>)<inf>0.935</inf>Li<inf>0.065</inf>)NbO<inf>3</inf>lead-free ceramicsen_US
article.title.sourcetitleCurrent Applied Physicsen_US
article.volume12en_US Universityen_US Mai Universityen_US University of Technologyen_US on Higher Educationen_US
Appears in Collections:CMUL: Journal Articles

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