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Atomic Scale Crystal Field Mapping of Polar Vortices in Oxide Superlattices

Published online by Cambridge University Press:  22 July 2022

Sandhya Susarla ,
Pablo García-Fernández ,
Colin Ophus ,
Sujit Das ,
Pablo Aguado-Puente ,
Margaret McCarter ,
Peter Ercius ,
Lane W. Martin ,
Ramamoorthy Ramesh  and
Javier Junquera
Sandhya Susarla
Affiliation:
National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA Department of Materials Science and Engineering, University of California, Berkeley, CA, 94720, USA
Pablo García-Fernández
Affiliation:
Departamento de Ciencias de la Tierra y Física de la Materia Condensada, Universidad de Cantabria, Cantabria Campus Internacional, Avenida de los Castros s/n, 39005, Santander, Spain
Colin Ophus
Affiliation:
National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
Sujit Das
Affiliation:
Department of Materials Science and Engineering, University of California, Berkeley, CA, 94720, USA
Pablo Aguado-Puente
Affiliation:
CIC nano GUNE BRTA, Donostia - San Sebastián, 20018, Spain
Margaret McCarter
Affiliation:
Department of Materials Science and Engineering, University of California, Berkeley, CA, 94720, USA
Peter Ercius
Affiliation:
National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
Lane W. Martin
Affiliation:
Department of Materials Science and Engineering, University of California, Berkeley, CA, 94720, USA
Ramamoorthy Ramesh
Affiliation:
National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA Department of Materials Science and Engineering, University of California, Berkeley, CA, 94720, USA Department of Physics, University of California, Berkeley, CA, 94720, USA
Javier Junquera
Affiliation:
Departamento de Ciencias de la Tierra y Física de la Materia Condensada, Universidad de Cantabria, Cantabria Campus Internacional, Avenida de los Castros s/n, 39005, Santander, Spain

Abstract

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Type
Advanced Imaging and Spectroscopy for Nanoscale Materials
Information
Microscopy and Microanalysis , Volume 28 , Supplement S1 , August 2022 , pp. 2590 - 2592
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Copyright
Copyright © Microscopy Society of America 2022

References

Yadav, A. K. et al. , Nature 530, 198 (2016).CrossRefGoogle Scholar
Cohen, R. E., Origin of Ferroelectricity in Perovskite Oxides, Nature 358, 136 (1992).CrossRefGoogle Scholar
Susarla, S. et al. Nat. Commun. 12, 6273 (2021).CrossRefGoogle Scholar
The electron microscopy experiments were performed at the Molecular Foundry, Lawrence Berkeley National Laboratory, which is supported by the U.S. Department of Energy under contract no. DE-AC02-05CH11231. S.S. is supported by the DOE BES program on Quantum Materials.Google Scholar