Axial polarization switching in ferroelectric BaTiO3 nanowire

Zhaoyu Wang; Jie Hu; Min Feng Yu

doi:10.1088/0957-4484/18/23/235203

Axial polarization switching in ferroelectric BaTiO₃ nanowire

Zhaoyu Wang^*, Jie Hu, Min Feng Yu

^*Corresponding author for this work

University of Illinois at Urbana-Champaign

Research output: Contribution to journal › Article › peer-review

42 Citations (Scopus)

Abstract

We report the study of direct ferroelectric polarization switching of a single crystal BaTiO₃ nanowire along its length axis. Polarization switching under axial dc bias, monitored with lateral mode piezoresponse force microscopy, was shown to be non-remnant. The result suggested the existence of a preferred polarization orientation in BaTiO₃ nanowire, i.e., a polarization imprint, and was explained with a core-shell polarization structure model. The polarization shell thickness was estimated to be ∼10 nm for a BaTiO₃ nanowire having a thickness of ∼120 nm.

Original language	English
Article number	235203
Journal	Nanotechnology
Volume	18
Issue number	23
DOIs	https://doi.org/10.1088/0957-4484/18/23/235203
Publication status	Published - 13 Jun 2007
Externally published	Yes

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Wang, Z., Hu, J., & Yu, M. F. (2007). Axial polarization switching in ferroelectric BaTiO₃ nanowire. Nanotechnology, 18(23), Article 235203. https://doi.org/10.1088/0957-4484/18/23/235203

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AB - We report the study of direct ferroelectric polarization switching of a single crystal BaTiO3 nanowire along its length axis. Polarization switching under axial dc bias, monitored with lateral mode piezoresponse force microscopy, was shown to be non-remnant. The result suggested the existence of a preferred polarization orientation in BaTiO3 nanowire, i.e., a polarization imprint, and was explained with a core-shell polarization structure model. The polarization shell thickness was estimated to be ∼10 nm for a BaTiO3 nanowire having a thickness of ∼120 nm.

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Axial polarization switching in ferroelectric BaTiO₃ nanowire

Abstract

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