Misfit strain phase diagrams of epitaxial PMN-PT films

被引：37
|
作者：
Khakpash, N. [1 ,2 ]
Khassaf, H. [1 ,2 ]
Rossetti, G. A., Jr. [1 ,2 ]
Alpay, S. P. [1 ,2 ,3 ]
机构：
[1] Univ Connecticut, Dept Mat Sci & Engn, Storrs, CT 06269 USA
[2] Univ Connecticut, Inst Mat Sci, Storrs, CT 06269 USA
[3] Univ Connecticut, Dept Phys, Storrs, CT 06269 USA
来源：
APPLIED PHYSICS LETTERS | 2015年 / 106卷 / 08期
关键词：
FERROELECTRIC THIN-FILMS; SINGLE-CRYSTALS; PIEZOELECTRIC PROPERTIES; SOLID-SOLUTIONS; CERAMICS; BOUNDARY; RELAXATION; BATIO3;
D O I：
10.1063/1.4913706
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Misfit strain-temperature phase diagrams of three compositions of (001) pseudocubic (1 - x)center dot Pb (Mgl/3Nb2/3)O-3 - x center dot PbTiO3 (PMN-PT) thin films are computed using a phenomenological model. Two (x = 0.30, 0.42) are located near the morphotropic phase boundary (MPB) of bulk PMN-PT at room temperature (RT) and one (x = 0.70) is located far from the MPB. The results show that it is possible to stabilize an adaptive monoclinic phase over a wide range of misfit strains. At RT, the stability region of this phase is much larger for PMN-PT compared to barium strontium titanate and lead zirconate titanate films. (C) 2015 AIP Publishing LLC.
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页数：5
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