Stability of Colloidal Quasicrystals

Дата и время публикации : 1998-03-06T18:52:38Z

Авторы публикации и институты :
A. R. Denton (Juelich)
H. Lowen (Duesseldorf and Juelich)

Ссылка на журнал-издание: Phys. Rev. Lett. 81, 469 (1998)
Коментарии к cтатье: 6 pages, 4 figures
Первичная категория: cond-mat.soft

Все категории : cond-mat.soft

Краткий обзор статьи: Freezing of charge-stabilized colloidal suspensions and relative stabilities of crystals and quasicrystals are studied using thermodynamic perturbation theory. Macroion interactions are modelled by effective pair potentials combining electrostatic repulsion with polymer-depletion or van der Waals attraction. Comparing free energies — counterion terms included — for elementary crystals and rational approximants to icosahedral quasicrystals, parameters are identified for which one-component quasicrystals are stabilized by a compromise between packing entropy and cohesive energy.

Category: Physics