5 papers
On the formation and the stability of suspended transition metal monatomic chains
A. Hasmy, L. Rincon, R. Hernandez +3
We present a Tight-Binding Molecular Dynamics investigation of the stability, the geometrical and the electronic structure of suspended monatomic transition metal chains. We show t…
Crystal asymmetry induces single-atom chain formation in gold nanowires
F. Tavazza, A. Hasmy, L. E. Levine +4
We performed density functional theory and tight-binding molecular dynamics calculations to investigate the formation of suspended linear atom chains when stretching gold nanowires…
Ballistic resistivity in aluminum nanocontacts
A. Hasmy, A. J. Perez-Jimenez, J. J. Palacios +5
One of the major industrial challenges is to profit from some fascinating physical features present at the nanoscale. The production of dissipationless nanoswitches (or nanocontact…
New universality class for the three-dimensional XY model with correlated impurities: Application to He in aerogels
Carlos Vásquez-Romero, R. Paredes-Villegas, A. Hasmy +1
Encouraged by experiments on He in aerogels, we confine planar spins in the pores of simulated aerogels (diffusion limited cluster-cluster aggregation) in order to study the ef…
Dispersion of imbibition fronts
Y. Melean, D. Broseta, A. Hasmy +1
We have studied the dispersive behaviour of imbibition fronts in a porous medium by X-ray tomography. Injection velocities were varied and the porous medium was initially prewetted…