Journal
NANO LETTERS
Volume 12, Issue 5, Pages 2367-2373Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl3003396
Keywords
Directed self-assembly; multiferroics; nanocomposites; e-beam lithography; BiFeO3; CoFe2O4
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Funding
- Nano-electronics Research Initiative, NSF [DMR-08-19762]
- DARPA [HR-0011-10-1-0072]
- National Defense Science and Engineering Graduate Fellowship
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CoFe2O4 (CFO)-BiFeO3 (BFO) nanocomposites are an intriguing option for future memory and logic technologies due to the magnetoelectric properties of the system. However, these nanocomposites form with CFO pillars randomly located within a BFO matrix, making implementation in devices difficult. To overcome this, we present a technique to produce patterned nanocomposites through self-assembly. CFO islands are patterned on Nb-doped SrTiO3 to direct the self-assembly of epitaxial CFO-BFO nanocomposites, producing square arrays of CFO pillars.
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