8 papers · 1 filter
Plastic Relaxation without Dislocations in -GaO Heteroepitaxy: A Structural Peculiarity of GaO Polymorphs
I. Bertoni, A. Marzegalli, A. Ugolotti +3
-GaO grows as three-dimensional islands on mismatched c-plane sapphire, often on a thin -GaO wetting layer, and eventually forms a continuous film by island c…
Growth and characterization of planar hexagonal Ge on CdS
Andrea Besana, Veronica Regazzoni, Marco Faverzani +13
Hexagonal group-IV semiconductors have attracted increasing interest owing to their unconventional electronic and optical properties compared to the cubic diamond phase. However, t…
Resolving the Metastable Si-XIII Structure through Convergent Theory and Experiment
Fabrizio Rovaris, Corrado Bongiorno, Anna Marzegalli +10
Silicon is the undisputed cornerstone of modern technology, with applications ranging from micro- and opto-electronics to quantum technologies. Recently, the exploration of its all…
Electronic States, Spin-Orbit Coupling and Magnetism in Germanium 60° Dislocations
Veronica Regazzoni, Fabrizio Rovaris, Anna Marzegalli +2
Defects in semiconductors have recently attracted renewed interest owing to their potential in novel quantum applications. Here we investigate the electronic and magnetic propertie…
Interaction of dopants with the I-type basal stacking fault in hexagonal-diamond Si
Marc Túnica, Perpetua Wanjiru Muchiri, Alberto Zobelli +3
Recently synthesized hexagonal-diamond silicon, germanium, and silicon-germanium nanowires exhibit remarkable optical and electronic properties when compared to cubic-diamond polyt…
Formation of Micrometer-Sized Textured Hexagonal Silicon Crystals via Nanoindentation
Mouad Bikerouin, Anna Marzegalli, Davide Spirito +10
We present a comprehensive study on the formation of micrometer-sized, textured hexagonal diamond silicon (hd-Si) crystals via nanoindentation followed by annealing. Utilizing adva…