Electrical properties of MgO-doped BaTiO3
文献信息
Jaill Jeong, Young Ho Han
The defect chemistry of Mg-doped BaTiO3 has been quantitatively studied. BaTi1−xMgxO3−x samples (x = 0, 0.001, 0.005, 0.01, 0.012, 0.02) have been precisely synthesized by the Pechini method. The concentration of oxygen vacancies was estimated from the location of the oxygen partial pressure P°(O2) at which the minimum point of equilibrium electrical conductivities occurs. Below 1.0 mol% Mg substitution for Ti sites, the experimental result is in good agreement with the theoretical calculation if the concentration of oxygen vacancies is assumed to be 100 ppm for undoped BaTiO3, where the oxygen vacancies stem from the background acceptor impurities. The solubility limit of Mg on Ti sites was confirmed to close to 1.0 mol%.
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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.










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