ROLE OF HYDROGEN IN POLARIZATION REVERSAL OF FERROELECTRIC Ba2NaNb5O15
- 15 February 1970
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 16 (4) , 176-178
- https://doi.org/10.1063/1.1653151
Abstract
By field‐annealing barium sodium niobate crystals in the presence of H2O and D2O vapor it is established that protons diffuse into the crystals. As a result of this diffusion, the crystal resistivity is found to increase by a factor of ∼2×103. It is concluded that diffusion of protons into ferroelectric barium sodium niobate and other high‐temperature ferroelectrics is necessary before the crystal dipole moment can be freely reversed by an external electric field.Keywords
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