The bulk structure of the ?-Al5Fe2 intermetallic compound consists in an ordered framework pentagonal antiprims with composition Al2Fe inside which nearly continuous chains fractionally occupied Al sites exist. At low temperature, ordering these channel atoms can occur, leading to various superstructures. Although Al5Fe2 phase is technological importance being present protective coating for ste...

In the present work, we investigate decays of $B^{0}_{s} \rightarrow \phi\pi^{+}\pi^{-}$ and $B^{0} with final state interactions based on chiral unitary approach. $\pi^+\pi^-$ its coupled channels, study effects $\eta\eta$ channel in two-body for reproduction $f_{0}(980)$ state. Our results invariant mass distributions decay describe experimental data up to 1 GeV well, resonance contributions ...

Particle-tracking methods are used to study gelation in a colloidal suspension of Laponite clay particles. We track the motion of small fluorescent polystyrene spheres added to the suspension, and obtain the micron-scale viscous and elastic moduli of the material from their mean-squared displacement. The fluorescent spheres move subdiffusively due to the microstructure of the suspension, with t...

Brane-world models, where observers are restricted to a brane in a higher dimensional spacetime, offer a novel perspective on cosmology. I discuss some approaches to cosmology in extra dimensions and some interesting aspects of gravity and cosmology in brane-world models. COSMOLOGY AFTER EINSTEIN A century after Einstein first proposed his theory of relativity, it has become a cornerstone of th...

Using ab initio calculation coupled with the bond-order-length-strength (BOLS) approximation, we investigate the configurations and electronic properties of (α, β)-graphyne nanoribbons (GYNRs) with armchair (AGYNRs) and zigzag (ZGYNRs) edges. Our investigation shows that the armchair-edged β-GYNRs and all α-GYNRs are semiconductors with suitable band-gaps, and that their band-gaps increase as t...