Polarization\nScreening Mechanisms at La&lt;sub&gt;0.7&lt;/sub&gt;Sr&lt;sub&gt;0.3&lt;/sub&gt;MnO&lt;sub&gt;3&lt;/sub&gt;–PbTiO&lt;sub&gt;3&lt;/sub&gt; Interfaces

Jonathan J. P. Peters (3777724); Nicholas C. Bristowe (2547049); Dorin Rusu (8480004); Geanina Apachitei (8480007); Richard Beanland (768962); Marin Alexe (1525840); Ana M. Sanchez (78123)

JOURNAL ARTICLE

Polarization\nScreening Mechanisms at La0.7Sr0.3MnO3–PbTiO3 Interfaces

Jonathan J. P. Peters (3777724)Nicholas C. Bristowe (2547049)Dorin Rusu (8480004)Geanina Apachitei (8480007)Richard Beanland (768962)Marin Alexe (1525840)Ana M. Sanchez (78123)

Year: 2020 Journal: OPAL (Open@LaTrobe) (La Trobe University) Publisher: La Trobe University

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Abstract

The\nstructural, electronic, and magnetic properties of interfaces\nbetween epitaxial La0.7Sr0.3MnO3 and\nPbTiO3 have been explored via atomic resolution transmission\nelectron microscopy of a functional multiferroic tunnel junction.\nMeasurements of the polar displacements and octahedral tilting show\nthe competition between the two distortions at the interface and demonstrate\nstrong dependence on the polarization orientation. The density functional\ntheory provides information on the electronic and magnetic properties,\nwhere the interface termination plays a crucial role in the screening\nmechanisms.

Keywords:

Multiferroics Polarization (electrochemistry) Interface (matter) Magnetic force microscope Ferroelectricity Density functional theory Atomic force microscopy Polar

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Polarization\nScreening Mechanisms at La<sub>0.7</sub>Sr<sub>0.3</sub>MnO<sub>3</sub>–PbTiO<sub>3</sub> Interfaces

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