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American Chemical Society, ACS Nano, 9(8), p. 9248-9254, 2014

DOI: 10.1021/nn503100s

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Hierarchical Templating of a BiFeO3–CoFe2O4 Multiferroic Nanocomposite by a Triblock Terpolymer Film

Journal article published in 2014 by Hong Kyoon Choi, Nicolas M. Aimon, Dong Hun Kim, Xue Yin Sun, Jessica Gwyther, Ian Manners ORCID, Caroline A. Ross
This paper was not found in any repository; the policy of its publisher is unknown or unclear.
This paper was not found in any repository; the policy of its publisher is unknown or unclear.

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Abstract

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.