Ordered 180 ferroelectric domains in epitaxial submicron structures

Ionela Vrejoiu; Alessio Morelli; Florian Johann; Daniel Biggemann

doi:10.1063/1.3630232

Ordered 180 ferroelectric domains in epitaxial submicron structures

Ionela Vrejoiu, Alessio Morelli, Florian Johann, Daniel Biggemann

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

Large range ordered La_0.7Sr_0.3MnO₃ and SrRuO₃ epitaxial dots were fabricated by pulsed laser deposition using stencil masks and were embedded in ferroelectric PbTiO₃ epitaxial films. PbTiO₃ films grown on top of La_0.7Sr _0.3MnO₃ dots form arrays of 180 domains that are switchable and have good ferroelectric properties. PbTiO₃ films made on top of SrRuO₃ dots have a monodomain polarization state. These observations point out the importance of the electronic properties of the bottom electrode in the selection of a preferential polarization state in epitaxial ferroelectric films and propose a route of fabricating large arrays of switchable 180 ferroelectric domains.

Original language	English
Article number	082906
Journal	Applied Physics Letters
Volume	99
Issue number	8
DOIs	https://doi.org/10.1063/1.3630232
Publication status	Published - 22 Aug 2011

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abstract = "Large range ordered La0.7Sr0.3MnO3 and SrRuO3 epitaxial dots were fabricated by pulsed laser deposition using stencil masks and were embedded in ferroelectric PbTiO3 epitaxial films. PbTiO3 films grown on top of La0.7Sr 0.3MnO3 dots form arrays of 180 domains that are switchable and have good ferroelectric properties. PbTiO3 films made on top of SrRuO3 dots have a monodomain polarization state. These observations point out the importance of the electronic properties of the bottom electrode in the selection of a preferential polarization state in epitaxial ferroelectric films and propose a route of fabricating large arrays of switchable 180 ferroelectric domains.",

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AU - Vrejoiu, Ionela

AU - Morelli, Alessio

AU - Johann, Florian

AU - Biggemann, Daniel

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AB - Large range ordered La0.7Sr0.3MnO3 and SrRuO3 epitaxial dots were fabricated by pulsed laser deposition using stencil masks and were embedded in ferroelectric PbTiO3 epitaxial films. PbTiO3 films grown on top of La0.7Sr 0.3MnO3 dots form arrays of 180 domains that are switchable and have good ferroelectric properties. PbTiO3 films made on top of SrRuO3 dots have a monodomain polarization state. These observations point out the importance of the electronic properties of the bottom electrode in the selection of a preferential polarization state in epitaxial ferroelectric films and propose a route of fabricating large arrays of switchable 180 ferroelectric domains.

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