| Autor: |
Singh, Swarn Lata, Bharadwaj, Atul S., Singh, Yashwant |
| Rok vydání: |
2011 |
| Předmět: |
|
| Zdroj: |
Physical Review E, 83, 051506 (2011) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevE.83.051506 |
| Popis: |
A free-energy functional that contains both the symmetry conserved and symmetry broken parts of the direct pair correlation function has been used to investigate the freezing of a system of hard spheres into crystalline and amorphous structures. The freezing parameters for fluid-crystal transition have been found to be in very good agreement with the results found from simulations. We considered amorphous structures found from the molecular dynamics simulations at packing fractions $\eta$ lower than the glass close packing fraction $\eta_{J}$ and investigated their stability compared to that of a homogeneous fluid. The existence of free-energy minimum corresponding to a density distribution of overlapping Gaussians centered around an amorphous lattice depicts the deeply supercooled state with a heterogeneous density profile. |
| Databáze: |
arXiv |
| Externí odkaz: |
|
