Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1461658 | Ceramics International | 2013 | 4 Pages |
Abstract
The site predilection and effects of the impurity in the form of Fe (II) and Fe (III) in the tetragonal barium titanate lattice were systematically determined by density function theory calculations. All electron calculation was carried out in the local density approximation (LDA). It is shown that both Fe (II) and Fe (III) prefer to substitute at the titanium site with oxygen vacancy compensation as a result of lowest substitution energy. Effect of Fe dopant both in form of Fe (II) and Fe (III) at titanium site with oxygen vacancy compensation lead to change in electrical property in terms of energy band structure of the tetragonal barium titanate lattice.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Piyarat Nimmanpipug, Aroon Saelor, Laongnuan Srisombat, Vannajan Sanghiran Lee, Yongyut Laosiritaworn,