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Advanced Materials

Nucleophilic Substitution Reaction Based Layer-by-Layer Growth of Superparamagnetic Nanocomposite Films with High Nonvolatile Memory Performance

Authors

  • Younghoon Kim,

    1. Department of Chemical and Biological Engineering, Korea University, Anam-dong, Seongbuk-gu, Seoul 136–701, (Korea)
    Current affiliation:
    1. These authors contributed equally to this work
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  • Chanwoo Lee,

    1. School of Advanced Materials Engineering, Kookmin University, Jeongneung-dong, Seongbuk-gu, Seoul 136–702, (Korea)
    Current affiliation:
    1. These authors contributed equally to this work
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  • Inbo Shim,

    1. Department of Nano and Electronic Physics, Kookmin University, Jeongneung-dong, Seongbuk-gu, Seoul 136–702, (Korea)
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  • Dayang Wang,

    1. Ian Wark Research Institute, University of South Australia, Adelaide, SA 5095, (Australia)
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  • Jinhan Cho

    Corresponding author
    1. Department of Chemical and Biological Engineering, Korea University, Anam-dong, Seongbuk-gu, Seoul 136–701, (Korea)
    • Department of Chemical and Biological Engineering, Korea University, Anam-dong, Seongbuk-gu, Seoul 136–701, (Korea).
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Abstract

Magnetic nanocomposite multilayers including magnetic nanoparticles are prepared using a nucleophilic substitution reaction between 2-bromo-2-methylpropionic acid (-BMPA) and amino (-NH2) groups. The assembly of magnetic nanoparticles in a nonpolar solvent induces densely packed adsorption, which significantly enhances the magnetic and nonvolatile memory properties of nanocomposite films.

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