Equilibrium glassy phase in a polydisperse hard-sphere system

Chaudhuri, Pinaki ; Karmakar, Smarajit ; Dasgupta, Chandan ; Krishnamurthy, H. R. ; Sood, A. K. (2005) Equilibrium glassy phase in a polydisperse hard-sphere system Physical Review Letters, 95 (24). 248301_1-248301_4. ISSN 0031-9007

PDF - Publisher Version

Official URL: http://prl.aps.org/abstract/PRL/v95/i24/e248301

Related URL: http://dx.doi.org/10.1103/PhysRevLett.95.248301


The phase diagram of a polydisperse hard-sphere system is examined by numerical minimization of a discretized form of the Ramakrishnan-Yussouff free-energy functional. Crystalline and glassy local minima of the free energy are located and the phase diagram in the density-polydispersity plane is mapped out by comparing the free energies of different local minima. The crystalline phase disappears and the glass becomes the equilibrium phase beyond a "terminal" value of the polydispersity. A crystal-to-glass transition is also observed as the density is increased at high polydispersity. The phase diagram obtained in our study is qualitatively similar to that of hard spheres in a quenched random potential.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:22768
Deposited On:24 Nov 2010 08:14
Last Modified:17 May 2016 06:44

Repository Staff Only: item control page