Journal article
Reversible charge injection in artificially created charged domain wall region
Scripta materialia, v 246, 116082
01 Jun 2024
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The impact of electric field application in the charged domain wall (DW) region on the performance of DW devices remains elusive. Here, we present our observations of substantial charge injection occurring in an artificially created charged DW region. Rapid charge injection coincides with polarization switching, contributing to the transient current collected for the integration of polarization-voltage hysteresis loops. Subsequently, a gradual injection of charges persists under externally applied voltages, diffusing into the thin film from the DW region to screen the space defect dipoles and effectively suppressing the imprint field. The process of charge injection proves reversible and is notably more pronounced in aged ferroelectric thin films, as evidenced in planar BiFeO3 nanodevices where the charge injection amount is five orders of magnitude higher than charges generated from polarization switching. This work constitutes a significant contribution to understanding the intricate process of charge injection and its influence on charged DW.
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Details
- Title
- Reversible charge injection in artificially created charged domain wall region
- Creators
- Dongfang Chen (Corresponding Author) - Drexel University, Mechanical Engineering and MechanicsXiaojun Tan - Fudan UniversityXu Jiang - Fudan UniversityJun Jiang - Fudan University
- Publication Details
- Scripta materialia, v 246, 116082
- Publisher
- Elsevier
- Number of pages
- 6
- Grant note
- 61904034 / National Natural Science Foundation of China; National Natural Science Foundation of China (NSFC)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Mechanical Engineering and Mechanics
- Web of Science ID
- WOS:001207604200001
- Scopus ID
- 2-s2.0-85187798142
- Other Identifier
- 991022202112404721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Materials Science, Multidisciplinary
- Metallurgy & Metallurgical Engineering
- Nanoscience & Nanotechnology