1998/05/01 by Chinmay Das, Das, Chinmay, H. R. Krishnamurthy +1
Physics and Astronomy · #Advanced Mathematical Theories and Applications #FOS: Physical sciences #Soft Condensed Matter (cond-mat.soft) #Statistical Mechanics (cond-mat.stat-mech) #cond-mat.soft #cond-mat.stat-mech
paper · pdf · doi:10.48550/arxiv.cond-mat/9805003
4 pages revtex file, 5 eps figures, communicated to PRB(rapid com.)
arxiv created 1998/05/01 · openalex publication_date 1998/05/01 · arxiv updated 2009/11/30 · openalex created_date 2019/06/27 · openalex updated_date 2026/07/28
We have studied the ordering of a two dimensional charge stabilised colloidal system in the presence of a stationary one dimensionally modulated laser field formed by the superposition of two modulations with wavevectors q0 τ and q0/τ, where q0 is the wavevector corresponding to the first peak of the direct correlation function of the unperturbed liquid, and τ is the golden mean. In the framework of the Landau-Alexander-McTague theory we find that a decagonal quasicrystalline phase is stabler than the liquid or the triangular lattice in certain regions of the phase diagram. Our study also shows a reentrant melting phenomena for larger laser field strengths. We find that the transition from the modulated liquid to the quasicrystalline phase is continuous in contrast to a first order transition from the modulated liquid to the triangular crystalline phase.