Evolution of ferroelectric domain structures embedded inside polycrystalline BaTiO3 during heating

Mesut Varlioglu*, Ersan Ustundag, Nobumichi Tamura, Jacob L. Jones

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The evolution of ferroelectric domains inside a single grain of a polycrystalline BaTiO3 ceramic was investigated under quasistatic heating by using polychromatic scanning x-ray microdiffraction. Four domain orientations were observed, three of which exhibited a classic of ∼90° ferroelastic relationship. The fourth domain orientation was found to be crystallographically related with one of the other orientations by a rotation of either 180.47° or 0.47°. While heating the polycrystalline BaTiO 3 from room temperature to above the Curie temperature (125 °C), all four ferroelectric domain orientations rotated toward a paraelectric cubic orientation which was found to be at an intermediate orientation relative to the four domain orientations. The crystallographic relationships of the domains with respect to paraelectric phase were explained using a domain structure model by Nepochatenko.

Orijinal dilİngilizce
Makale numarası064101
DergiJournal of Applied Physics
Basın numarası6
Yayın durumuYayınlandı - 2010
Harici olarak yayınlandıEvet


This project is funded by the APS which is supported by the U.S. DOE under Contract No. W-31-109-ENG-38. The Advanced Light Source is supported by the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences Division of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231 at Lawrence Berkeley National Laboratory and University of California, Berkeley, California. One of the authors (J.L.J.) acknowledges the support from the National Science Foundation under Award No. DMR-0746902. The authors would like to thank Dr. Ulrich Lienert (APS) for helpful discussions and Seung-Yub Lee (ISU), Guillaume Geandier (ALS), and Sirine Fakra (ALS) for help in the experiments.

FinansörlerFinansör numarası
National Science FoundationDMR-0746902
U.S. Department of EnergyDE-AC02-05CH11231, W-31-109-ENG-38
Office of Science
Basic Energy Sciences

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