Abstract
Polarization phenomena in acentric crystals under the spatially inhomogeneous temperature gradient conditions are investigated. Theoretical analysis of the different contributions to pyroelectric effect in the thermodynamically nonequilibrium crystals is presented. A separation of the secondary and tertiary pyroelectric effects in piezoelectric media taking into account the distinctive features of nonequilibrium process manifestation in a crystal is described. A role of the false contributions to the pyroelectric response under examined conditions is analysed, that is necessary for a design and developing the construction principles of a new class of infrared sensors on the basis of the polarization phenomena under investigation.
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