Title of article
Hyperfine characterization of Bi1.9Te0.1SrNb1.9Hf0.1O9
Author/Authors
Alonso، نويسنده , , R.E. and Lَpez-Garcيa، نويسنده , , A. and Martيnez، نويسنده , , J.A. and Castro، نويسنده , , A. and Paschoal، نويسنده , , A.R. and Silva، نويسنده , , E.N. and Ayala، نويسنده , , A.P. and Guedes Soares، نويسنده , , I.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2006
Pages
5
From page
97
To page
101
Abstract
The Aurivillius type oxide Bi1.9Te0.1SrNb1.9Hf0.1O9 has been studied by Perturbed Angular Correlations spectroscopy using 181Ta probes. The spin precession curves were measured from room temperature up to 873 K. Two sites are occupied by probes and the temperature dependence of both indicates a continuous phase transition at about 625 K. One site is ordered while the other is disordered. This situation is analyzed in terms of simple models already applied to perovskites. The transition temperature of the solid solution Bi2−xTexSrNb2−xHfxO9 (with 0 ≤ x ≤ 0.5 ) shows a strong dependence on composition.
Keywords
C. Point defects , A. Hyperfine interactions , B. Solid solution , D. Phase transition , A. Ferroelectrics
Journal title
Solid State Communications
Serial Year
2006
Journal title
Solid State Communications
Record number
1790892
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