Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/22217
Title: Self-assembled nanoscale capacitor cells based on ultrathin BiFeO 3 films
Authors: Miao, Q
Zeng, M
Zhang, Z
Lu, X
Dai, J 
Gao, X
Liu, JM
Issue Date: 2014
Publisher: American Institute of Physics
Source: Applied physics letters, 2014, v. 104, no. 18, 182903 How to cite?
Journal: Applied physics letters 
Abstract: Ultrathin multiferroic BiFeO3 (BFO) films with self-assembled surface nano-islands on La0.67Sr0.33MnO3/(100) SrTiO3 substrates are fabricated by a one-step pulsed laser deposition process using the Bi-rich BFO target. It is revealed that these surface nano-islands mainly consist of conductive Bi2O3 outgrowths, which serve as top electrodes for the nanoscale BFO capacitor cells with lateral size of 10-30nm. The ferroelectric BFO layer underneath these Bi2O3 nanoislands prefers certain complex domain structure with vertical and antiparallel polarization components (the so-called "anti-domain structure") and reduced domain switching fields. Moreover, these nanoscale capacitor cells exhibit the resistive switching IV behavior, offering opportunities for application in ultrahigh density non-volatile memories.
URI: http://hdl.handle.net/10397/22217
ISSN: 0003-6951
EISSN: 1077-3118
DOI: 10.1063/1.4875617
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