Enhancement of coercivity of self-assembled stacking of ferrimagnetic and antiferromagnetic nanocubes

Keisuke Sawano, Keishi Tsukiyama, Makoto Shimizu, Mihiro Takasaki, Yuya Oaki, Takashi Yamamoto, Yasuaki Einaga, Christian Jenewein, Helmut Cölfen, Hideo Kaiju, Tetsuya Sato, Hiroaki Imai

Research output: Contribution to journalArticle

Abstract

The coercivity of magnetic nanoparticles is enhanced by the exchange coupling effect at the interface of ferrimagnetic and antiferromagnetic self-assembled monolayers. Antiferromagnetic Co3O4 nanocubes were regularly stacked on an ordered monolayer of ferrimagnetic Fe3O4 nanocubes by layer-by-layer manipulation using evaporation-driven self-assembly. The ordered arrangements of the ferrimagnetic and antiferromagnetic nanocubes are effective for the enhancement of the ferromagnetic character.

Original languageEnglish
Pages (from-to)7792-7796
Number of pages5
JournalNanoscale
Volume12
Issue number14
DOIs
Publication statusPublished - 2020 Apr 14

ASJC Scopus subject areas

  • Materials Science(all)

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    Sawano, K., Tsukiyama, K., Shimizu, M., Takasaki, M., Oaki, Y., Yamamoto, T., Einaga, Y., Jenewein, C., Cölfen, H., Kaiju, H., Sato, T., & Imai, H. (2020). Enhancement of coercivity of self-assembled stacking of ferrimagnetic and antiferromagnetic nanocubes. Nanoscale, 12(14), 7792-7796. https://doi.org/10.1039/c9nr10558a