Monte Carlo numerical simulations are used to study in detail how the characteristics of the isotropic-nematic phase transition change as infinitely thin hard platelets are bent into shallow lens-like particles. First, this phase transition in the former reference model system is re-examined and more accurately located. Then, it is shown quantitatively that this already quite weak but distinctly first-order phase transition weakens further upon curving the platelets to such an extent that, thanks to the thinness of these particles that does not favor its pre-emptying by a transition to a (partially) positionally ordered phase, an isotropic-nematic tricritical point limit can be arbitrarily closely approached.
|Autori:||Cinacchi, Giorgio; Tani, Alessandro|
|Titolo:||The isotropic-nematic phase transition in hard, slightly curved, lens-like particles.|
|Anno del prodotto:||2014|
|Digital Object Identifier (DOI):||10.1063/1.4897565|
|Appare nelle tipologie:||1.1 Articolo in rivista|