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Title: Polarization characterization of PZT disks and of embedded PZT plates by thermal wave methods

In this work, the thermal wave method was applied to characterize PZT disks and embedded PZT plates with regard to the polarization magnitude and spatial homogeneity. The samples were exposed to periodic heating by means of a laser beam and the pyroelectric response was determined. Thermal relaxation times (single time constants or distributions of time constants) describe the heat losses of the PZT samples to the environment. The resulting pyroelectric current spectrum was fitted to the superposition of thermal relaxation processes. The pyroelectric coefficient gives insight in the polarization distribution. For PZT disks, the polarization distribution in the surface region showed a characteristic decrease towards the electrodes.
Authors:
; ;  [1] ; ; ;  [2]
  1. Technische Universität Dresden, Solid State Electronics Laboratory, Helmholtzstraße 18, 01062 Dresden (Germany)
  2. Fraunhofer Institute for Ceramic Technologies and Systems, Winterbergstraße 28, 01277 Dresden (Germany)
Publication Date:
OSTI Identifier:
22390533
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1627; Journal Issue: 1; Conference: 14. Electroceramics Conference, Bucharest (Romania), 16-20 Jun 2014; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ELECTRIC CURRENTS; HEAT LOSSES; LASER RADIATION; PERIODICITY; PLATES; POLARIZATION; PYROELECTRIC EFFECT; PZT; RELAXATION; SURFACES