Thermodynamic aspects of superionic conductivity |
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| Institution: | 1. Laboratório de Materiais Vítreos (LaMaV), Departamento de Engenharia de Materiais, Universidade Federal de São Carlos, Rod. Washington Luiz, km 235, 13565-905, São Carlos, SP, Brazil;2. Institut Charles Gerhardt (ICG), UMR 5253 CNRS-Université de Montpellier, Place Eugène Bataillon, 34095, Montpellier, France;1. Department of Chemistry and Physics, National University of Water and Environmental Engineering, 33028, Rivne, Ukraine;2. Department of Physical and Colloid Chemistry, Ivan Franko National University of Lviv, 79005, Lviv, Ukraine;3. Johan Gadolin Process Chemistry Centre, Åbo Akademi University, 20500, Turku, Finland;4. Department of Inorganic Chemistry, Ivan Franko National University of Lviv, 79005, Lviv, Ukraine;5. Department of Cartography and Geospatial Modeling, Lviv Polytechnic National University, 79013, Lviv, Ukraine;6. Department of Measuring Information Technologies, Lviv Polytechnic National University, 79013, Lviv, Ukraine;1. Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA;2. Theoretical Physics and Applied Mathematics Department, Ural Federal University, Mira Str.19, 620002, Yekaterinburg, Russia;3. Institute of Theoretical Physics, University of Hamburg, Jungiusstraße 9, 20355, Hamburg, Germany |
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| Abstract: | This article reviews the theoretical and experimental studies on a number of thermodynamic aspects of superionic conduction, the intensive study of which began in the past decades. We discuss the relation of superionic conductivity to the disordering of one of the sublattices of the crystal, disordering phase transitions caused by the interaction of point defects, and the mechanism of polymorphic transitions associated with partial disordering. We analyse the effect of jumpwise variation of the ionic conductivity induced by an external electric field, the thermodynamics of domain states in superionic conductors, and the effect of pressure on the phase transitions and the ionic conductivity. |
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