Jump to main content
Jump to site search

Issue 44, 2019

Rotational polarization nanotopologies in BaTiO3/SrTiO3 superlattices

Author affiliations

Abstract

Ferroelectrics are characterized by domain structures as are other ferroics. At the nanoscale though, ferroelectrics may exhibit non-trivial or exotic polarization configurations under proper electrostatic and elastic conditions. These polar states may possess emerging properties not present in the bulk compounds and are promising for technological applications. Here, the observation of rotational polarization topologies at the nanoscale by means of aberration-corrected scanning transmission electron microscopy is reported in BaTiO3/SrTiO3 superlattices grown on cubic SrTiO3(001). The transition from a highly homogeneous polarization state to the formation of rotational nanodomains has been achieved by controlling the superlattice period while maintaining compressive clamping of the superlattice to the cubic SrTiO3 substrate. The nanodomains revealed in BaTiO3 prove that its nominal tetragonal structure also allows rotational polar textures.

Graphical abstract: Rotational polarization nanotopologies in BaTiO3/SrTiO3 superlattices

Supplementary files

Article information


Submitted
18 Sep 2019
Accepted
21 Oct 2019
First published
24 Oct 2019

This article is Open Access

Nanoscale, 2019,11, 21275-21283
Article type
Paper

Rotational polarization nanotopologies in BaTiO3/SrTiO3 superlattices

S. Estandía, F. Sánchez, M. F. Chisholm and J. Gázquez, Nanoscale, 2019, 11, 21275 DOI: 10.1039/C9NR08050C

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party commercial publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.


Social activity

Search articles by author

Spotlight

Advertisements