Tuning liquid magnet formation in nanoplatelet suspensions

Paper Title:

Isotropic to nematic transition in alcohol ferrofluids of barium hexaferrite nanoplatelets

Published on:

2 April 2024

Primary Category:

Soft Condensed Matter

Paper Authors:

Patricija Hribar Boštjančič,

Žiga Gregorin,

Nerea Sebastián,

Natan Osterman,

Darja Lisjak,

Alenka Mertelj

Bullets

Key Details

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Magnetic nanoplatelet suspensions can transition to an exotic magnetic liquid state

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Nanoplatelet size, charge, and magnetic properties determine transition point

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Larger, more magnetic plates form magnetic liquids at lower concentrations

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More nanoplatelet charge raises transition concentration threshold

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Findings aid design of novel magnetic soft matter

Explore the topics in this paper

iron oxide materials

magnetic phase transitions

nanoparticle suspensions

particle interactions

tuning material properties

AI generated summary

Tuning liquid magnet formation in nanoplatelet suspensions

This paper reports on tuning the transition between disordered and magnetically ordered states in suspensions of magnetic iron oxide nanoplatelets dissolved in alcohol. By changing nanoplatelet size, charge, and magnetic properties, the precise concentration threshold to form an exotic magnetic liquid could be shifted up or down. Results further scientific understanding of how delicate balances between competing microscopic particle interactions can dramatically alter bulk material properties.