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TZID:Europe/Paris
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BEGIN:VEVENT
UID:0-691@lptms.universite-paris-saclay.fr
DTSTART:20191115T143000Z
DTEND:20191115T173000Z
DTSTAMP:20191113T130158Z
URL:http://www.lptms.universite-paris-saclay.fr/seminars/soutenance-de-the
 se-ivan-palaia/
SUMMARY:Soutenance de thèse: Ivan Palaia - Petit amphi\, bâtiment Pascal 
 n° 530 - 15 Nov 19 14:30
DESCRIPTION:Charged systems in\, out of\, and driven to equilibrium: from n
 anocapacitors to cement\nPar\n\nIvan Palaia\n&nbsp\;\n\nJury:\n\nRudolf Po
 dgornik\, Chinese Academy of Sciences\, rapporteur\n\nRené van Roij\, Utr
 echt University\, rapporteur\n\nEmanuela del Gado\, Georgetown University\
 , examinatrice\n\nPatrick Guenoun\, CEA Saclay / CNRS\, examinateur\n\nMan
 oel Manghi\, Université de Toulouse / CNRS\, examinateur\n\nBenjamin Rote
 nberg\, Sorbonne Université / CNRS\, examinateur\n\nEmmanuel Trizac\, Uni
 versité Paris-Sud / CNRS\, directeur de thèse\n\nRésumé :\n\nMost syst
 ems in soft matter are immersed in solutions with charged species: some ca
 n be described by mean-field theories\, others require more sophisticated 
 techniques. In this thesis defense we focus on two such systems.\n\nFirstl
 y\, we analyze the relaxation dynamics of a nanocapacitor within the mean-
 field approach. We study relaxation times in the linear and nonlinear regi
 me and characterize the behavior of the system as a function of salt densi
 ty and applied voltage. The problem of designing a smart applied potential
 \, to drive the system from an initial to a chosen final equilibrium state
 \, is also tackled.\n\nWe then discuss the physics of ionic correlations i
 n charged systems\, with particular focus on the phenomenon of like-charge
  attraction. We show the relevance of the strong coupling theory\, that we
  apply to the nanoscopic constituents of cement. We demonstrate that the s
 trong cohesion force of cement may be explained by a “dry water” pictu
 re\, in excellent agreement with molecular dynamics simulations\, thereby 
 filling a gap in our understanding of the most used synthetic material in 
 the world.\n
CATEGORIES:seminars
LOCATION:Petit amphi\, bâtiment Pascal n° 530\, rue André Rivière\, Ors
 ay\, 91405\, France
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=rue André Rivière\, Orsay
 \, 91405\, France;X-APPLE-RADIUS=100;X-TITLE=Petit amphi\, bâtiment Pasca
 l n° 530:geo:0,0
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