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 Keun 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 Keun Kim

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

4 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

Bibliographical note

Funding Information:
Acknowledgments This work was supported by the National Research Foundation of Korea (2013K2A1A7076318, 2014M3A7B4052193, 2015M3D1A1070465), the Russian Foundation for Basic Research (14-02-91701 NIFa), and the Russian Ministry of Education and Science (State Task 559).

Publisher Copyright:
© 2016 The Japan Society of Applied Physics.

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

Access to Document

10.7567/JJAP.55.100303

Cite this

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

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.",

author = "Samardak, {Alexander S.} and Davydenko, {Alexander V.} and Ognev, {Alexey V.} and Jeon, {Yoo Sang} and Choi, {Young Soo} and Kim, {Young Keun}",

note = "Funding Information: Acknowledgments This work was supported by the National Research Foundation of Korea (2013K2A1A7076318, 2014M3A7B4052193, 2015M3D1A1070465), the Russian Foundation for Basic Research (14-02-91701 NIFa), and the Russian Ministry of Education and Science (State Task 559). Publisher Copyright: {\textcopyright} 2016 The Japan Society of Applied Physics.",

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AU - Davydenko, Alexander V.

AU - Ognev, Alexey V.

AU - Jeon, Yoo Sang

AU - Choi, Young Soo

AU - Kim, Young Keun

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AB - 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.

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