Interface-mediated ferroelectric patterning and Mn valency in nano-structured PbTiO 3 /La 0.7 Sr 0.3 MnO 3

Ingo P. Krug, Hatice Doganay, Florian Nickel, Daniel M. Gottlob, Claus M. Schneider, Alessio Morelli, Daniele Preziosi, Ionela Lindfors-Vrejoiu, Robert Laskowski, Nick Barrett

Research output: Contribution to journalArticle

Abstract

We employed a multitechnique approach using piezo-force response microscopy and photoemission microscopy to investigate a self-organizing polarization domain pattern in PbTiO 3 /La 0.7 Sr 0.3 MnO 3 (PTO/LSMO) nanostructures. The polarization is correlated with the nanostructure morphology as well as with the thickness and Mn valence of the LSMO template layer. On the LSMO dots, the PTO is upwards polarized, whereas outside the nanodots, the polarization appears both strain and interface roughness dependent. The results suggest that the electronic structure and strain of the PTO/LSMO interface contribute to determining the internal bias of the ferroelectric layer.

LanguageEnglish
Article number095304
JournalJournal of Applied Physics
Volume120
Issue number9
Early online date2 Sep 2016
DOIs
Publication statusPublished - 7 Sep 2016

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polarization
microscopy
organizing
photoelectric emission
roughness
templates
electronic structure
valence

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Krug, Ingo P. ; Doganay, Hatice ; Nickel, Florian ; Gottlob, Daniel M. ; Schneider, Claus M. ; Morelli, Alessio ; Preziosi, Daniele ; Lindfors-Vrejoiu, Ionela ; Laskowski, Robert ; Barrett, Nick. / Interface-mediated ferroelectric patterning and Mn valency in nano-structured PbTiO 3 /La 0.7 Sr 0.3 MnO 3. In: Journal of Applied Physics. 2016 ; Vol. 120, No. 9.
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abstract = "We employed a multitechnique approach using piezo-force response microscopy and photoemission microscopy to investigate a self-organizing polarization domain pattern in PbTiO 3 /La 0.7 Sr 0.3 MnO 3 (PTO/LSMO) nanostructures. The polarization is correlated with the nanostructure morphology as well as with the thickness and Mn valence of the LSMO template layer. On the LSMO dots, the PTO is upwards polarized, whereas outside the nanodots, the polarization appears both strain and interface roughness dependent. The results suggest that the electronic structure and strain of the PTO/LSMO interface contribute to determining the internal bias of the ferroelectric layer.",
author = "Krug, {Ingo P.} and Hatice Doganay and Florian Nickel and Gottlob, {Daniel M.} and Schneider, {Claus M.} and Alessio Morelli and Daniele Preziosi and Ionela Lindfors-Vrejoiu and Robert Laskowski and Nick Barrett",
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Krug, IP, Doganay, H, Nickel, F, Gottlob, DM, Schneider, CM, Morelli, A, Preziosi, D, Lindfors-Vrejoiu, I, Laskowski, R & Barrett, N 2016, 'Interface-mediated ferroelectric patterning and Mn valency in nano-structured PbTiO 3 /La 0.7 Sr 0.3 MnO 3', Journal of Applied Physics, vol. 120, no. 9, 095304. https://doi.org/10.1063/1.4962007

Interface-mediated ferroelectric patterning and Mn valency in nano-structured PbTiO 3 /La 0.7 Sr 0.3 MnO 3. / Krug, Ingo P.; Doganay, Hatice; Nickel, Florian; Gottlob, Daniel M.; Schneider, Claus M.; Morelli, Alessio; Preziosi, Daniele; Lindfors-Vrejoiu, Ionela; Laskowski, Robert; Barrett, Nick.

In: Journal of Applied Physics, Vol. 120, No. 9, 095304, 07.09.2016.

Research output: Contribution to journalArticle

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T1 - Interface-mediated ferroelectric patterning and Mn valency in nano-structured PbTiO 3 /La 0.7 Sr 0.3 MnO 3

AU - Krug, Ingo P.

AU - Doganay, Hatice

AU - Nickel, Florian

AU - Gottlob, Daniel M.

AU - Schneider, Claus M.

AU - Morelli, Alessio

AU - Preziosi, Daniele

AU - Lindfors-Vrejoiu, Ionela

AU - Laskowski, Robert

AU - Barrett, Nick

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