The defect and dielectric properties of Nb and Mn co-doping BaTiO3 ceramics. (10th September 2018)

• Record Type: Journal Article
• Authors: Yang, Xiaojing; Liu, Xiaobing; Ding, Shihua
• Is Part Of: Ferroelectrics. Volume 533(2018)
• Page Start: 132
• Page End: 138
• Publication Date: 2018-09-10
• Subjects: BaTiO3 ceramics -- defects -- dielectric relaxation -- PNRs; Ferroelectricity -- Periodicals; Ferroelectric crystals -- Periodicals; 537
• DOI: 10.1080/00150193.2018.1472995
• Languages: English
• ISSNs: 0015-0193

Abstract

Abstract: The effect of Nb and Mn as dopants on the dielectric properties of BaTiO3 based ceramics was investigated. When the content of Nb <1.0% mol (Mn =1.6% mol), a diffuse phase transition (DFT) character appeared, and a normal-like ferroelectrics character was observed as the content of Nb is 1.0% mol. When the content of Nb increases up to 1.1% mol, it showed a dielectric relaxation. The binding energy for different defect associations [2 N b T i + V B a ″ ] and [V O + 2 M n T i ′ ] calculated using computer simulation techniques and the dielectric properties related to polar nanoregions (PNRs) were discussed.