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X-ORIGINAL-URL:https://www.lps.u-psud.fr/
X-WR-CALNAME:Laboratoire de physique des Solides
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BEGIN:VEVENT
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DTSTART;TZID=Europe/Paris:20230623T110000
DTEND;TZID=Europe/Paris:20230623T120000
DTSTAMP:20230407T062500
UID:MEC-9d740bd0f36aaa312c8d504e28c42163@lps.u-psud.fr
CREATED:20230407
LAST-MODIFIED:20230620
PRIORITY:5
TRANSP:OPAQUE
SUMMARY:Aggregation of dipolar chains – René Messina
DESCRIPTION:\n\n\n\n\nLPCT  – UMR CNRS 7019\n\n\n\nSelf-assembly of dipolar particles assisted by external magnetic/electric field is relevant in the development of a wide range of applications. The inherent chain formation leads to outstanding magnetic properties that can be beneficial to drug delivery, \n\n\n\nmicrofluidic systems, electrophotographic devices,  data recording , etc.\n\n\n\nIn this talk, I will address the aggregation of dipolar chains driven by thermal fluctuations in an external strong magnetic field. A newly discovered  simple electrostatic mechanism is exposed. The resulting curvature-mediated quadrupolar coupling rationalizes the counter-intuitive lateral coalescence of dipolar chains. Our Monte Carlo simulations results corroborate this mechanism. These findings shed new light on a longstanding problem in soft matter and related areas.   \n
URL:https://www.lps.u-psud.fr/events/rene-messina/
CATEGORIES:Séminaire Matière Molle Phys-Bio
LOCATION:Orsay
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