Diffusivity control of magnetic cube-particle chain by external magnetic field

Sang Hyuk Lee; Seung Young Park; You Jin Lee; Gi Ra Yi; Stefano Sacanna; Dong Hyun Kim

doi:10.1063/1.4997712

Diffusivity control of magnetic cube-particle chain by external magnetic field

Sang Hyuk Lee, Seung Young Park, You Jin Lee, Gi Ra Yi, Stefano Sacanna, Dong Hyun Kim

Chemistry

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

Abstract

We report our direct Brownian motion observation of Fe₂O₃ magnetic cube chains under external magnetic fields, where the possibility of tuning the Brownian motion characteristics, such as diffusivity, by magnetic fields is realized. It has been experimentally demonstrated that the diffusivity is modified with an angular dependency on the magnetic field direction, well explained based on the Stokes-Einstein relation considering an effective cross-sectional change of magnetic cube chains.

Original language	English (US)
Article number	132401
Journal	Applied Physics Letters
Volume	111
Issue number	13
DOIs	https://doi.org/10.1063/1.4997712
State	Published - Sep 25 2017

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.4997712

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@article{c52744fc7a104607b24fb36770c52d56,

title = "Diffusivity control of magnetic cube-particle chain by external magnetic field",

abstract = "We report our direct Brownian motion observation of Fe2O3 magnetic cube chains under external magnetic fields, where the possibility of tuning the Brownian motion characteristics, such as diffusivity, by magnetic fields is realized. It has been experimentally demonstrated that the diffusivity is modified with an angular dependency on the magnetic field direction, well explained based on the Stokes-Einstein relation considering an effective cross-sectional change of magnetic cube chains.",

author = "Lee, {Sang Hyuk} and Park, {Seung Young} and Lee, {You Jin} and Yi, {Gi Ra} and Stefano Sacanna and Kim, {Dong Hyun}",

note = "Funding Information: This work was supported by a NRF Grant (No. 2015R1D1A3A01020686) and KBSI Grant No. D37614 through the NRF of Korea. Publisher Copyright: {\textcopyright} 2017 Author(s).",

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doi = "10.1063/1.4997712",

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AU - Lee, Sang Hyuk

AU - Park, Seung Young

AU - Lee, You Jin

AU - Yi, Gi Ra

AU - Sacanna, Stefano

AU - Kim, Dong Hyun

PY - 2017/9/25

Y1 - 2017/9/25

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AB - We report our direct Brownian motion observation of Fe2O3 magnetic cube chains under external magnetic fields, where the possibility of tuning the Brownian motion characteristics, such as diffusivity, by magnetic fields is realized. It has been experimentally demonstrated that the diffusivity is modified with an angular dependency on the magnetic field direction, well explained based on the Stokes-Einstein relation considering an effective cross-sectional change of magnetic cube chains.

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Diffusivity control of magnetic cube-particle chain by external magnetic field

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