Complex oxides: high temperature defect chemistry vs. low temperature defect chemistry‡

Literature Information

Publication Date 2003-04-29
DOI 10.1039/B300139N
Impact Factor 3.676
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Abstract

The contribution addresses the bridge between high temperature chemistry at which thermodynamic defect equilibrium with neighbouring phases can be assumed, and low temperature physics in which usually only electronic carriers behave reversibly. An optimised quenching procedure is discussed to obtain profile-free reproducible conditions. The conditioning of multinary compounds, typically complex oxides, exhibiting ionic carriers with distinctly different mobilities, requires a multi-step quenching procedure. The treatment of partial equilibria and the connection between quenched and reversible states allows us to understand a variety of “anomalous” phenomena. In this context, some results on mixed conducting, ion conducting and superconducting ceramics are reviewed.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
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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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