A new ferroelectric: Guanidinium uranyl sulfate trihydrate.

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Date
1978Author
Lanza de Dussel, H.
Wainer, L. S. de
Rodríguez de Benyacar, M. A.
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Dielectric behaviour studies have been carried out on (C(NH2) 3) 2) - UO2 - (SO4)2 - 3H2O, a member of the family of guanidinium sulfate hydrates. The uranyl compound, which is not isomorphous with G.A.S.H., is ferroelectric from about 100°C (decomposition temperature) down to -30 °C , the lowest we have employed. Domain structure and etch-pit configuration are quite similar to those observed in G.A.S.H.
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