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 | |
| Publication status | Published - 2016 Oct 1 |
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ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)
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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
}
TY - JOUR
T1 - Size-dependent changeover in magnetization reversal mode of self-assembled one-dimensional chains of spherical Fe3O4 nanoparticles
AU - Samardak, Alexander S.
AU - Davydenko, Alexander V.
AU - Ognev, Alexey V.
AU - Jeon, Yoo Sang
AU - Choi, Young Soo
AU - Kim, Young-geun
PY - 2016/10/1
Y1 - 2016/10/1
N2 - 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.
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.
UR - http://www.scopus.com/inward/record.url?scp=84989337889&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84989337889&partnerID=8YFLogxK
U2 - 10.7567/JJAP.55.100303
DO - 10.7567/JJAP.55.100303
M3 - Article
VL - 55
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 10
M1 - 100303
ER -