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Phase-change switching in 2D via soft interactions
KTH, School of Engineering Sciences (SCI), Physics.
Univ Strasbourg, IPCMS, UMR 7504, IcFRC,ISIS,UMR 7006, F-67000 Strasbourg, France.;CNRS, F-67000 Strasbourg, France..
ENS Lyon, CNRS, UMR 5672, Lab Phys, F-69364 Lyon 07, France..
KTH, School of Engineering Sciences (SCI), Physics.ORCID iD: 0000-0003-1164-0831
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2019 (English)In: Soft Matter, ISSN 1744-683X, E-ISSN 1744-6848, Vol. 15, no 3, p. 355-358Article in journal (Refereed) Published
Abstract [en]

We present a new type of phase-change behavior relevant for information storage applications, that can be observed in 2D systems with cluster-forming ability. The temperature-based control of the ordering in 2D particle systems depends on the existence of a crystal-to-glass transition. We perform molecular dynamics simulations of models with soft interactions, demonstrating that the crystalline and amorphous structures can be easily tuned by heat pulses. The physical mechanism responsible for this behavior is a self-assembled polydispersity, that depends on the cluster-forming ability of the interactions. Therefore, the range of real materials that can perform such a transition is very wide in nature, ranging from colloidal suspensions to vortex matter. The state of the art in soft matter experimental setups, controlling interactions, polydispersity and dimensionality, makes it a very fertile ground for practical applications.

Place, publisher, year, edition, pages
ROYAL SOC CHEMISTRY , 2019. Vol. 15, no 3, p. 355-358
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Physical Sciences
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URN: urn:nbn:se:kth:diva-244117DOI: 10.1039/c8sm01738gISI: 000457278300001PubMedID: 30556570Scopus ID: 2-s2.0-85060062234OAI: oai:DiVA.org:kth-244117DiVA, id: diva2:1289744
Note

QC 20190219

Available from: 2019-02-19 Created: 2019-02-19 Last updated: 2019-05-10Bibliographically approved

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Diaz-Mendez, RogelioWallin, MatsLidmar, JackBabaev, Egor

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