Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/76494
Title: BiFeO3 nanorings synthesized via AAO template-assisted pulsed laser deposition and ion beam etching
Authors: Tian, G
Chen, DY
Yao, JX
Luo, QY
Fan, Z
Zeng, M
Zhang, Z
Dai, JY
Gao, XS
Liu, JM
Issue Date: 2017
Publisher: Royal Society of Chemistry
Source: RSC advances, 2017, v. 7, no. 65, p. 41210-41216 How to cite?
Journal: RSC advances 
Abstract: We propose a novel and facile method to fabricate epitaxial ferroelectric BiFeO3 (BFO) nanorings using anodized alumina (AAO) template-assisted PLD and ion-beam etching. The morphology and dimensions of these nanorings are revealed by atomic force microscopy (AFM) and confirmed by transmission electron microscopy (TEM). The typical dimensions of the BFO nanorings are 12 nm inner diameter with 30 nm wall thickness and heights of around 10 nm. The X-ray diffraction (XRD), reciprocal space mapping (RSM) and TEM data demonstrate the epitaxial structure of these nanorings. Moreover, the ferroelectric properties are investigated by piezoresponse force microscopy (PFM), showing the polarization reversal behaviors of the isolated BFO nanorings, which have great potential applications for high-density non-volatile memory devices. In addition, this novel method could also be extended to other material systems (such as BaTiO3, ZnO and Au). Furthermore, the fabrication of high quality nanoring structures may open a pathway to explore related emerging physical phenomena (e.g., ferroelectric vortices).
URI: http://hdl.handle.net/10397/76494
ISSN: 2046-2069
EISSN: 2046-2069
DOI: 10.1039/c7ra07677k
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