| Автор | Qiang Wang |
| Автор | Binglin Gu |
| Автор | Xiaowen Zhang |
| Дата выпуска | 1990-12-10 |
| dc.description | Experimental observation of a (Pb<sub>1-x</sub>Ca<sub>x</sub>)TiO<sub>3</sub> complex perovskite ceramic near x=0.5 has suggested that the Pb and Ca atoms are ordered alternately on a particular A site (111) plane. Furthermore, a body-centred superlattice ordered structure has been observed in (Ba<sub>1-x</sub>Pb<sub>x</sub>)TiO<sub>3</sub> ceramic. In this paper, the eight-point cluster variation method, in which the second- and third-neighbour interactions are considered, has been employed to study these ordered structures and calculate the phase diagrams as a function of reduced temperature and composition for various interaction parameters. Theoretical results explained well the formation mechanism of these ordered structures. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Superlattice ordered structures of (A<sub>x</sub>A<sub>1-x</sub>)BO<sub>3</sub> complex perovskite materials |
| Тип | paper |
| DOI | 10.1088/0953-8984/2/49/008 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 2 |
| Первая страница | 9815 |
| Последняя страница | 9820 |
| Аффилиация | Qiang Wang; Dept. of Mater. Sci. & Eng., Tsinghua Univ., Beijing, China |
| Аффилиация | Binglin Gu; Dept. of Mater. Sci. & Eng., Tsinghua Univ., Beijing, China |
| Аффилиация | Xiaowen Zhang; Dept. of Mater. Sci. & Eng., Tsinghua Univ., Beijing, China |
| Выпуск | 49 |
