101 citations · 224 across the 9 of their papers we have counts for
7 papers · 1 filter
Thermodynamic driving force in the formation of hexagonal-diamond Si and Ge nanowires
E. Scalise, A. Sarikov, L. Barbisan +4
The metastable hexagonal-diamond phase of Si and Ge (and of SiGe alloys) displays superior optical properties with respect to the cubic-diamond one. The latter is the most stable a…
Reentrant behavior of the density vs temperature of indium islands on GaAs(111)A
Artur Tuktamyshev, Alexey Fedorov, Sergio Bietti +4
We show that the density of indium islands on GaAs(111)A substrates have a non-monotonic, reentrant behavior as a function of the indium deposition temperature. The expected increa…
Origin and nature of killer defects in 3C-SiC for power electronic applications by a multiscale atomistic approach
Emilio Scalise, Luca Barbisan, Andrey Sarikov +3
3C-SiC epitaxially grown on Si displays a large wealth of extended defects. In particular, single, double and triple stacking faults (SFs) are observed in several experiments to co…
Kinetic Control of Morphology and Composition in Ge/GeSn Core/Shell Nanowires
Simone Assali, Roberto Bergamaschini, Emilio Scalise +8
The growth of Sn-rich group-IV semiconductors at the nanoscale provides new paths for understanding the fundamental properties of metastable GeSn alloys. Here, we demonstrate the e…
Temperature-dependent stability of polytypes and stacking faults in SiC: reconciling theory and experiments
Emilio Scalise, Anna Marzegalli, Francesco Montalenti +1
The relative stability of SiC polytypes, changing with temperature, has been considered a paradox for about thirty years, due to discrepancies between theory and experiments. Based…
Monolithic growth of ultra-thin Ge nanowires on Si(001)
Jianjun Zhang, Georgios Katsaros, Francesco Montalenti +8
Self-assembled Ge wires with a height of only 3 unit cells and a length of up to 2 micrometers were grown on Si(001) by means of a catalyst-free method based on molecular beam epit…
Impact-driven effects in thin-film growth: steering and transient mobility at the Ag(110) surface
Michele Ceriotti, Riccardo Ferrando, Francesco Montalenti
Low-energy atomic impacts on the Ag(110) surface are investigated by molecular dynamics simulations based on reliable many-body semiempirical potentials. Trajectory deflections (st…