Impedance spectroscopy studies of bulk electrical conduction in A-site acceptor (K)-doped BaTiO3
作者： Pengrong Ren , Huiqing Fan , Xin Wang
DOI: 10.1007/S10853-013-7513-4
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摘要: BaTiO 3 ceramics with different acceptor concentrations of potassium at A-site Ba 1− x K x TiO 3− x/2 (BKT) were prepared by solid-state processes. The solution limit of potassium in BKT is determined to be 1 mol%. Furthermore, electrical conduction behaviours were investigated in the temperature range of 300–800° C by analysing impedance spectra and were found extremely depending on processing and measurement conditions. When annealed at 800° C and measured in an atmosphere of dry N 2, BKT is a mixed oxide …
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