The random phase approximation for binary hard-core mixture

Phase diagram of a binary symmetric hard-core Yukawa mixture.

We assess the accuracy of the self-consistent Ornstein-Zernike approximation for a binary symmetric hard-core Yukawa mixture by comparison with Monte Carlo simulations of the phase diagrams obtained for different choices of the ratio alpha of the unlike-to-like interactions. In particular, from the results obtained at alpha=0.75 we find evidence for a critical endpoint in contrast to recent stu...

Molecular dynamics simulation of a binary mixture lubricant for use in hard disk interfaces

In Hard Disk Drives (HDD), it is necessary to decrease the Flying Height (FH) between the head and the disk (currently, FH is around 3-5 nm) so as to increase recording densities. Retaining the solid lubricant has become a difficult proposition owing to intermittent contact between the surfaces. ZTMD and Z are used as solid lubricant to lubricate these interfaces. In this paper, the behavior of...

Molecular dynamics simulation of a binary mixture lubricant for use in hard disk interfaces

In Hard Disk Drives (HDD), it is necessary to decrease the Flying Height (FH) between the head and the disk (currently, FH is around 3-5 nm) so as to increase recording densities. Retaining the solid lubricant has become a difficult proposition owing to intermittent contact between the surfaces. ZTMD and Z are used as solid lubricant to lubricate these interfaces. In this paper, the behavior of...

Three-phase equilibrium in a binary hard-core lattice model.

Phase separation in binary hard-core mixtures: An exact result.

We show that certain lattice models for a binary mixture of hard particle mixtures can be mapped onto a one-component lattice gas or, equivalently, onto an Ising model. The repulsive interaction between unlike particles in the mixture leads to an attractive nearest-neighbour interaction in the one-component lattice gas. In particular, we have found a lattice model of a binary hard-core mixture ...