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SUMMARY:Hard and soft packing in the molecular organization of liquid crys
 tals - Claudio Zannoni (Università di Bologna)
DTSTART:20190403T145000Z
DTEND:20190403T153000Z
UID:TALK122542@talks.cam.ac.uk
CONTACT:INI IT
DESCRIPTION:&nbsp\;The first generation of theories and computer simulatio
 ns of liquid crystals have made drastic and often contrasting assumptions 
 on the model representation of constituent mesogens and on the type of int
 ermolecular interactions (e.g purely attractive in Maier-Saupe type and pu
 rely hard repulsive in Onsager models). Computer simulations of liquid cry
 stals\, that started with simple lattice models\, have upgraded over the y
 ears to off-lattice models where molecules are replaced by relatively simp
 le objects endowed with purely steric or attractive and repulsive type int
 eractions of various softness and\, more recently\, to very realistic full
 y atomistic models. In the talk we shall briefly summarize the main featur
 es of these models and show various examples for the prediction of liquid 
 crystal phase behavior starting from microscopic models. The contribution 
 of different interactions to the phase morphologies obtained as well as op
 en problems will be discussed.  <br><br><br><br>
LOCATION:Seminar Room 2\, Newton Institute
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