Structural and Dielectric Properties of SnTiO3, a Putative Ferroelectric

被引：33
作者：
Fix, Thomas [1 ]
Sahonta, S. -Lata [1 ]
Garcia, Vincent [2 ,3 ]
MacManus-Driscoll, Judith L. [1 ]
Blamire, Mark G. [1 ]
机构：
[1] Univ Cambridge, Dept Mat Sci, Cambridge CB2 3QZ, England
[2] Univ Paris 11, F-91405 Orsay, France
[3] CNRS Thales, Unite Mixte Phys, F-91767 Palaiseau, France
来源：
CRYSTAL GROWTH & DESIGN | 2011年 / 11卷 / 05期
基金：
英国工程与自然科学研究理事会;
关键词：
THIN-FILMS; CRYSTAL-STRUCTURE; TITANATE; OXIDES; PHASE;
D O I：
10.1021/cg200333q
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Perovskite SnTiO3 has been predicted to be ferro electric with properties comparable to BaTiO3. Here we report on the experimental discovery of a new SnTiO3 phase, in the form of thin films grown on various substrates by pulsed laser deposition. They exhibit an unexpected epitaxial relationship, different from the predicted perovskite structure. X-ray diffraction and transmission electron microscopy experiments show that the films grown have an ilmenite structure. The films are insulating but do not display any ferroelectricity at room temperature; however, some films contain a small. second phase component consistent with the predicted perovskite phase.
引用
收藏
页码：1422 / 1426
页数：5
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