Work

Enhanced stability of layered phases in parallel hard spherocylinders due to addition of hard spheres

Year: 2000

Type: article

Abstract: There is increasing evidence that entropy can induce microphase separation in binary fluid mixtures interacting through hard particle potentials. One such phase consists of alternating two-dimensional liquidlike layers of rods and spheres. We study the transition from a uniform miscible state to this ordered state using computer simulations, and compare results to experiments and theory. We conclude the following: (1) There is stable entropy driven microphase separation in mixtures of parallel rods and spheres. (2) Adding spheres smaller than the rod length decreases the total volume fraction needed for the formation of a layered phase, and therefore small spheres effectively stabilize the layered phase; the opposite is true for large spheres. (3) The degree of this stabilization increases with increasing rod length.

Source: Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics

DOI: 10.1103/physreve.62.3925

Authors: Zvonimir Dogic, Daan Frenkel, Seth Fraden

Institutions: Brandeis University, Institute for Atomic and Molecular Physics

Language: English

Topic: Material Dynamics and Properties

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, Nederlandse Organisatie voor Wetenschappelijk Onderzoek, Division of Materials Research

OpenAlex ID: W2125897515

FWCI: 3.947

Cites: 38

Cited by: 113

Related to: 10