Robust polarization switching in self-assembled BiFeO3 nanoislands with quad-domain structures

Mingfeng Chen, Ji Ma, Ren Ci Peng, Qinghua Zhang, Jing Wang, Yuhan Liang, Jialu Wu, Long-qing Chen, Jing Ma, Ce Wen Nan

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Miniaturizing ferroic oxides is essential for studying the fundamental physics of low-dimensional topological defects such as flux-closure vortex as well as the applications of future nanoelectronic devices. Here, we successfully synthesized self-assembled BiFeO3 nanoislands on LaAlO3 (001) substrate by pulsed laser deposition. Center-type quad-domains are spontaneously stabilized in these nanostructures, and the polarization vectors of each quarter can be independently switched with robust retention properties over time and elevated temperature. As a result, the long-sought exotic domain structures such as anti-vertex can be created in these nanoislands by selectively switching polarization state of certain quarters. Resistive switching effect is also confirmed in quarters of the nanoisland, indicating the great potential as memory cells in high density ferroelectric random access memory.

Original languageEnglish (US)
Pages (from-to)324-330
Number of pages7
JournalActa Materialia
Volume175
DOIs
StatePublished - Aug 15 2019

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Polarization
Data storage equipment
Nanoelectronics
Pulsed laser deposition
Oxides
Ferroelectric materials
Nanostructures
Vortex flow
Physics
Fluxes
Defects
Substrates
Temperature
Elvitegravir, Cobicistat, Emtricitabine, Tenofovir Disoproxil Fumarate Drug Combination

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Polymers and Plastics
  • Metals and Alloys

Cite this

Chen, M., Ma, J., Peng, R. C., Zhang, Q., Wang, J., Liang, Y., ... Nan, C. W. (2019). Robust polarization switching in self-assembled BiFeO3 nanoislands with quad-domain structures. Acta Materialia, 175, 324-330. https://doi.org/10.1016/j.actamat.2019.06.016
Chen, Mingfeng ; Ma, Ji ; Peng, Ren Ci ; Zhang, Qinghua ; Wang, Jing ; Liang, Yuhan ; Wu, Jialu ; Chen, Long-qing ; Ma, Jing ; Nan, Ce Wen. / Robust polarization switching in self-assembled BiFeO3 nanoislands with quad-domain structures. In: Acta Materialia. 2019 ; Vol. 175. pp. 324-330.
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Chen, M, Ma, J, Peng, RC, Zhang, Q, Wang, J, Liang, Y, Wu, J, Chen, L, Ma, J & Nan, CW 2019, 'Robust polarization switching in self-assembled BiFeO3 nanoislands with quad-domain structures', Acta Materialia, vol. 175, pp. 324-330. https://doi.org/10.1016/j.actamat.2019.06.016

Robust polarization switching in self-assembled BiFeO3 nanoislands with quad-domain structures. / Chen, Mingfeng; Ma, Ji; Peng, Ren Ci; Zhang, Qinghua; Wang, Jing; Liang, Yuhan; Wu, Jialu; Chen, Long-qing; Ma, Jing; Nan, Ce Wen.

In: Acta Materialia, Vol. 175, 15.08.2019, p. 324-330.

Research output: Contribution to journalArticle

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AU - Wu, Jialu

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AU - Ma, Jing

AU - Nan, Ce Wen

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