Structure and electrical properties of c-axis epitaxial Srm-3Bi4TimO3m+3 (m=5 and 6) thin films

被引：4

作者：

Wang, Lei ^{[1
]}

Ding, Lu-Yi ^{[1
]}

Zhang, Shan-Tao ^{[1
]}

Chen, Yan-Feng ^{[1
]}

Liu, Zhi-Guo ^{[1
]}

机构：

[1] Nanjing Univ, Natl Lab Solid State Microstruct, Dept Mat Sci & Engn, Nanjing 210093, Peoples R China

来源：

SOLID STATE COMMUNICATIONS | 2009年 / 149卷 / 45-46期

关键词：

Aurivillius oxides; Epitaxial thin films; Ferroelectric polarization; PULSED-LASER DEPOSITION; BI4TI3O12; GROWTH;

D O I：

10.1016/j.ssc.2009.08.018

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

C-axis epitaxial Sm-3Bi4TmO3M+3 (SBTim, m = 5 and 6) thin films were fabricated on conductive LaNiO3 (LNO) coated LaAlO3 (LAO) substrates by pulsed laser deposition. The structure was characterized by x-ray diffraction (including theta - 2 theta, rocking curve, and phi scans) and atomic force microscopy. The epitaxial relationship was established (001)SBTim//(001)LNO/1(001)LAO, [110] SBTim//[ 110]LNO//[110]LAO when orthorhombic structure indexing was used for SBTim. It is revealed that the films with odd m have a ferroelectric hysteresis loops whereas those with even m have collinear polarization-electric field curves. The microstructure background responsible for the observations was discussed. Our results provide further evidence that the c-axis polarization of Bi-layered oxides depends on the parity of in. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：2061 / 2064

页数：4

共 22 条

[1] Study of the Aurivillius phases Bi4Srn-3TinO3n+3 (n=4, 5) synthesized by mechanochemical activation [J].