Ferroelectric elastance of sodium niobate-lithium niobate solid solutions in relation to A-O bond covalence |
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| Authors: | L. A. Reznichenko A. Ya. Dantsiger O. N. Razumovskaya S. I. Dudkina L. A. Shilkina I. V. Pozdnyakova V. A. Servuli |
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| Affiliation: | (1) Research Institute of Physics, Rostov State University, pr. Stachki 194, Rostov-on-Don, 344090, Russia |
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| Abstract: | The ferroelectric elastance of (Na, Li, A 0.5 ′ )NbO3 solid solutions was found to vary directly with the total electronegativity of elements A (EN ∑ A ), that is, with the A-O bond covalence at B=const. Using EN ∑ A values and the position on the phase diagram, one can determine the solid solution parameters optimum for use in high-frequency (A′=Sr, Pb), medium-frequency (A′=Cd), and elevated-temperature (A′=Cd) devices. |
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