Size-dependent changeover in magnetization reversal mode of self-assembled one-dimensional chains of spherical Fe3O4 nanoparticles

Alexander S. Samardak; Alexander V. Davydenko; Alexey V. Ognev; Yoo Sang Jeon; Young Soo Choi; Young-geun Kim

doi:10.7567/JJAP.55.100303

Size-dependent changeover in magnetization reversal mode of self-assembled one-dimensional chains of spherical Fe₃O₄ nanoparticles

Alexander S. Samardak, Alexander V. Davydenko, Alexey V. Ognev, Yoo Sang Jeon, Young Soo Choi, Young-geun Kim

Department of Materials Science and Engineering

Research output: Contribution to journal › Article

2 Citations (Scopus)

Abstract

Understanding the ferromagnetic behavior of coupled magnetic nanoparticles (NPs) in a chain structure, called a nanochain (NC), will open up new routes for its practical use. Here, we report the magnetization reversal modes in isolated magnetite (Fe₃O₄) NPs with diameters of 100 and 200 nm, as well as those of one-dimensional (1D) self-assembled NCs consisting of these NPs. NCs consisting of 100-nm diameter NPs switched through a transverse domain wall-like motion. Meanwhile, in 200-nm diameter NPs and NCs, we observed 3D magnetic vortex states that were more energetically favorable than single domain or multidomain states.

Original language	English
Article number	100303
Journal	Japanese Journal of Applied Physics
Volume	55
Issue number	10
DOIs	https://doi.org/10.7567/JJAP.55.100303
Publication status	Published - 2016 Oct 1

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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Samardak, A. S., Davydenko, A. V., Ognev, A. V., Jeon, Y. S., Choi, Y. S., & Kim, Y. (2016). Size-dependent changeover in magnetization reversal mode of self-assembled one-dimensional chains of spherical Fe₃O₄ nanoparticles. Japanese Journal of Applied Physics, 55(10), [100303]. https://doi.org/10.7567/JJAP.55.100303

Size-dependent changeover in magnetization reversal mode of self-assembled one-dimensional chains of spherical Fe₃O₄ nanoparticles. / Samardak, Alexander S.; Davydenko, Alexander V.; Ognev, Alexey V.; Jeon, Yoo Sang; Choi, Young Soo; Kim, Young-geun.

In: Japanese Journal of Applied Physics, Vol. 55, No. 10, 100303, 01.10.2016.

Research output: Contribution to journal › Article

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