Thickness dependence on the dielectric properties of BaTiO3/SrTiO3-multilayers

被引：22

作者：

Koebernik, G

Haessler, W

Pantou, R

Weiss, F

机构：

[1] IFW Dresden, D-01171 Dresden, Germany

[2] Inst Natl Polytech Grenoble, LMGP, F-38402 St Martin Dheres, France

来源：

THIN SOLID FILMS | 2004年 / 449卷 / 1-2期

关键词：

superlattices; ferroelectric properties; epitaxy; laser ablation;

D O I：

10.1016/j.tsf.2003.10.031

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We prepared highly textured SrTiO3/BaTiO3-miltilayers with artificial lattice structure by pulsed laser deposition in off-axis geometry on SrTiO3:Nb-single crystals. In this paper we compare the structural and dielectric properties of symmetric superlattice structures of SrTiO3/BaTiO3 layers with (Ba0.5Sr0.5)TiO3 solid solutions of the same thickness. The dielectric constant (DC) of the multilayers is lower in comparison to the solid solutions, the thickness dependence is weaker and the influence of an external bias field on the multilayer films is weaker as well. The temperature dependence on the DC of BaTiO3/SrTiO3-superlattices shows a broader transition peak and the Curie temperature is shifted slightly to lower values. (C) 2003 Elsevier B.V. All rights reserved.

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页码：80 / 85

页数：6

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