Collège Doctoral - Doktorandenkollegien

Statistical Physics of Complex Systems

Coventry - Leipzig - Lviv - Nancy

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Seminar

The Adsorption Transition in the Microcanonical Ensemble
Monika Möddel
ITP Leipzig
le Thursday 05 February 2009 à 15h30
GrHosSR
Nach ein paar einleitenden Worten zu den Vorzügen des mikrokanonischen Ensembles in kleinen Systemen, werde ich auf das Verhalten meines Polymermodells nahe der Oberfläche insbesondere abhängig von Oberflächenanziehungsstärke und Kettenlänge eingehen. I performed a microcanonical analyses of a coarse-grained polymer near an attractive substrate. By means of multicanonical simulations a convex intruder of the microcanonical entropy for short molecules and high surface attraction strengths is found. This is a typical signal for a phase separation process not visible in a canonical simulation. The two coexisting phases here are adsorbed and desorbed polymers conformations. A particular focus on this work in progress will be on the behavior with varying surface attraction strength and polymer length.


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