Ferroelectric nanodomains in epitaxial PbTiO3 films grown on SmScO3 and TbScO3 substrates

被引：32

作者：

Borodavka, F. ^{[1
]}

Gregora, I. ^{[1
]}

Bartasyte, A. ^{[2
]}

Margueron, S. ^{[3
,4
]}

Plausinaitiene, V. ^{[5
]}

Abrutis, A. ^{[5
]}

Hlinka, J. ^{[1
]}

机构：

[1] Acad Sci Czech Republ, Inst Phys, Prague 18221 8, Czech Republic

[2] Univ Lorraine, CNRS, UMR 7198, Inst Jean Lamour, F-54042 Nancy, France

[3] Univ Lorraine, EA 4423, Lab Mat Opt Photon & Syst, F-57070 Metz, France

[4] Supelec, F-57070 Metz, France

[5] Vilnius State Univ, Dept Gen & Inorgan Chem, LT-03225 Vilnius, Lithuania

来源：

JOURNAL OF APPLIED PHYSICS | 2013年 / 113卷 / 18期

关键词：

MISFIT RELAXATION MECHANISMS; DOMAIN CONFIGURATIONS; THIN-FILMS; POLARIZATION;

D O I：

10.1063/1.4801966

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Domain structures of 320 nm thin epitaxial films of ferroelectric PbTiO3 grown by metal-organic chemical vapor deposition technique in identical conditions on SmScO3 and TbScO3 perovskite substrates have been investigated by Raman spectroscopy and piezoresponse force microscopy techniques. Phonon frequency shifts and typical domain structure motifs are discussed. The results reveal strikingly different domain structure architecture: domain structures of the PbTiO3 film grown on SmScO3 have dominantly a-domain orientation while strongly preferential c-domain orientation was found in the PbTiO3 film grown on the TbScO3 substrate. Differences between the two cases are traced back to the film-substrate lattice mismatch at the deposition temperature. (C) 2013 AIP Publishing LLC.

引用

页数：7

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