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Title: In situ X-ray diffraction and the evolution of polarization during the growth of ferroelectric superlattices

Journal Article · · Nature Communications
DOI:https://doi.org/10.1038/ncomms10136· OSTI ID:1240624

In the epitaxially strained ferroelectric thin films and superlattices, the ferroelectric transition temperature can lie above the growth temperature. Ferroelectric polarization and domains should then evolve during the growth of a sample, and electrostatic boundary conditions may play an important role. In this work, ferroelectric domains, surface termination, average lattice parameter and bilayer thickness are simultaneously monitored using in situ synchrotron X-ray diffraction during the growth of BaTiO3/SrTiO3 superlattices on SrTiO3 substrates by off-axis radio frequency magnetron sputtering. The technique used allows for scan times substantially faster than the growth of a single layer of material. Effects of electric boundary conditions are investigated by growing the same superlattice alternatively on SrTiO3 substrates and 20 nm SrRuO3 thin films on SrTiO3 substrates. Our experiments provide important insights into the formation and evolution of ferroelectric domains when the sample is ferroelectric during the growth process.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-98CH10886
OSTI ID:
1240624
Journal Information:
Nature Communications, Vol. 6; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 35 works
Citation information provided by
Web of Science

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Cited By (19)

Large Polarization and Susceptibilities in Artificial Morphotropic Phase Boundary PbZr 1− x Ti x O 3 Superlattices journal January 2020
Picoscale materials engineering journal September 2017
Nanoscale design of polarization in ultrathin ferroelectric heterostructures journal November 2017
Domain alignment within ferroelectric/dielectric PbTiO 3 /SrTiO 3 superlattice nanostructures journal January 2018
Interface-induced enhancement of piezoelectricity in the (SrTiO 3 ) m /(BaTiO 3 ) M−m superlattice for energy harvesting applications journal January 2019
Rotational polarization nanotopologies in BaTiO 3 /SrTiO 3 superlattices journal January 2019
Thin film growth studies using time-resolved x-ray scattering journal November 2016
Depolarizing-Field Effects in Epitaxial Capacitor Heterostructures journal October 2019
Quick X-ray reflectivity using monochromatic synchrotron radiation for time-resolved applications journal April 2018
Single-beam lifetime measurements via self-induced optical absorption journal January 2019
Design and Manipulation of Ferroic Domains in Complex Oxide Heterostructures journal September 2019
Depolarizing-Field Effects in Epitaxial Capacitor Heterostructures text January 2019
Probing ferroic states in oxide thin films using optical second harmonic generation text January 2018
Design and Manipulation of Ferroic Domains in Complex Oxide Heterostructures text January 2019
Nanoscale design of polarization in ultrathin ferroelectric heterostructures text January 2017
Quick X-ray Reflectivity using Monochromatic Synchrotron Radiation for Time-Resolved Applications text January 2017
Rotational polarization nanotopologies in BaTiO3/SrTiO3 superlattices text January 2019
Domain alignment within ferroelectric/dielectric PbTiO$_3$/SrTiO$_3$ superlattice nanostructures text January 2020
Decoupling the refractive index from the electrical properties of transparent conducting oxides via periodic superlattices journal September 2016

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