Investigation of Local Ferroelectric Properties of Ultrathin Ferroelectric Films with Scanning Tunneling Microscopy

DOI

https://doi.org/10.1109/EExPolytech56308.2022.9950820
Final published version

Natalia V. Andreeva
Eugeny A. Ryndin
Yuriy A. Demin
Anatoliy E. Petukhov
Vladislava S. Bagrets

Scanning tunneling microscopy in ultrahigh vacuum conditions was used to study local ferroelectric properties of ultrathin ferroelectric BaTiO 3 film in SrTiO 3 /La 0.7 Sr 0.3 MnO 3 /BaTiO 3 structure. Interestingly, polarization state of the BaTiO 3 film could strongly influence the results of STM topographic images. It was found that the polarization induced changes in the local tunnel electroresistance could be used to study the local ferroelectric property distribution in thin ferroelectric film. Additionally, we develop an approach ensuring successful implementation of local ferroelectric property measurements with scanning tunneling microscopy technique.

Original language	English
Title of host publication	2022 International Conference on Electrical Engineering and Photonics (EExPolytech)
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	210-213
ISBN (Electronic)	9781665490306
ISBN (Print)	9781665490313
DOIs	https://doi.org/10.1109/EExPolytech56308.2022.9950820
State	E-pub ahead of print - 2022
Event	2022 International Conference on Electrical Engineering and Photonics - St. Petersburg, Russian Federation Duration: 20 Oct 2022 → 21 Oct 2022

Conference

Conference	2022 International Conference on Electrical Engineering and Photonics
Country/Territory	Russian Federation
City	St. Petersburg
Period	20/10/22 → 21/10/22

ID: 106598692