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Nucleophilic Substitution Reaction Based Layer‐by‐Layer Growth of Superparamagnetic Nanocomposite Films with High Nonvolatile Memory Performance
Author(s) -
Kim Younghoon,
Lee Chanwoo,
Shim Inbo,
Wang Dayang,
Cho Jinhan
Publication year - 2010
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201002142
Subject(s) - nanocomposite , materials science , superparamagnetism , nucleophilic substitution , nanoparticle , layer (electronics) , layer by layer , adsorption , solvent , non volatile memory , substitution (logic) , nanotechnology , chemical engineering , organic chemistry , optoelectronics , computer science , chemistry , magnetization , magnetic field , physics , quantum mechanics , engineering , programming language
Magnetic nanocomposite multilayers including magnetic nanoparticles are prepared using a nucleophilic substitution reaction between 2‐bromo‐2‐methylpropionic acid (‐BMPA) and amino (‐NH 2 ) 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.