期刊
ACS NANO
卷 8, 期 9, 页码 9248-9254出版社
AMER CHEMICAL SOC
DOI: 10.1021/nn503100s
关键词
directed self-assembly; spinel-perovskite nanocomposite; triblock terpolymer
类别
资金
- NSF [DMR1007760]
- EPSRC
- FAME
- MARCO
- DARPA
- CMSE award [NSF DMR 0819762]
- Engineering and Physical Sciences Research Council [EP/H047468/1] Funding Source: researchfish
- EPSRC [EP/H047468/1] Funding Source: UKRI
A process route to fabricate templated BiFeO3/CoFe2O4 (BFO/CFO) vertical nanocomposites is presented in which the self-assembly of the BFO/CFO is guided using a self-assembled triblock terpolymer. A linear triblock terpolymer was selected instead of a diblock copolymer in order to produce a square-symmetry template, which had a period of 44 nm. The triblock terpolymer pattern was transferred to a (001) Nb:SrTiO3 substrate to produce pits that formed preferential sites for the nucleation of CFO crystals, in contrast to the BFO, which wetted the flat regions of the substrate. The crystallographic orientation and magnetic properties of the templated BFO/CFO were characterized.
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