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Observation of center-type quad-domain structures in ordered BiFeO3 nanoisland arrays fabricated via mask-assisted pulsed laser deposition

Authors :
Xingchen Zhang
Yihang Guo
Guo Tian
Zhiqing Song
Chao Chen
Wenda Yang
Zhipeng Hou
Deyang Chen
Zhen Fan
Guofu Zhou
Jun-Ming Liu
Xingsen Gao
Source :
Journal of Applied Physics. 133:134103
Publication Year :
2023
Publisher :
AIP Publishing, 2023.

Abstract

Exotic topological domains in BiFeO3 nanoislands have attracted much attention regarding their potential applications in advanced electronic devices. Here, different from the earlier reported disordered distributed BiFeO3 nanoislands formed by a self-assembly method, we fabricated an ordered BiFeO3 nanoisland array by mask-assisted pulsed laser deposition on a SrTiO3 substrate, which exhibits a center-converged in-plane polarization component and a monodomain pattern along the vertical direction. Such center-type quad-domain structures exhibit high stability, maintaining their topological structures after heating to 250 °C and subsequently cooling to room temperature. Moreover, they can be switched by applying a scanning electric field and recovered by applying a heating and cooling process. Observing this topological structure in BiFeO3 nanoislands might provide a suitable platform for further exploration of its topological phase transition properties, new functions, and potential applications.

Subjects

Subjects :
General Physics and Astronomy

Details

ISSN :
10897550 and 00218979
Volume :
133
Database :
OpenAIRE
Journal :
Journal of Applied Physics
Accession number :
edsair.doi...........1a78072f03ab3f78a7d4a67d1ef7a84b
Full Text :
https://doi.org/10.1063/5.0138170