Defect Structure and Dielectric Properties of Nd2O3‐Modified BaTiO3
- 1 September 1986
- journal article
- Published by Wiley in Journal of the American Ceramic Society
- Vol. 69 (9) , 689-694
- https://doi.org/10.1111/j.1151-2916.1986.tb07472.x
Abstract
The defect structure and dielectric properties of BaTiO3 with 1 to 10 mol% Nd2O3 additions were studied. The results indicated that neodymium occupies the barium site and charge compensation takes place by creation of titanium vacancies. The dependence of inverse electric susceptibility, spontaneous polarization, and specific heat on temperature for samples containing more than 2 mol% of Nd2O3 were characteristic of a diffuse transformation resulting from a disordering of defects. The addition of Nd2O3 leads to a very drastic sfiift in the Curie temperature (Tc) of BaTiO3; 3 mel% Nd2O3 addition moves Tc below room temperature.Keywords
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