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

Research output: Contribution to journalArticlepeer-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 languageEnglish (US)
Article number132401
JournalApplied Physics Letters
Volume111
Issue number13
DOIs
StatePublished - Sep 25 2017

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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