Physics of Silicene Stripes

Silicene: Recent theoretical advances

Holographic stripes.

We construct inhomogeneous asymptotically anti-de Sitter black hole solutions corresponding to the spontaneous breaking of translational invariance and the formation of striped order in the boundary field theory. We find that the system undergoes a second-order phase transition in both the fixed density and fixed chemical potential ensembles, for sufficiently large values of the axion coupling....

How silicene on Ag(111) oxidizes: microscopic mechanism of the reaction of O2 with silicene.

We demonstrate, using first-principles molecular-dynamics simulations, that oxidation of silicene can easily take place either at low or high oxygen doses, which importantly helps clarify previous inconsistent reports on the oxidation of silicene on the Ag(111) substrate. We show that, while the energy barrier for an O2 molecule reacting with a Si atom strongly depends on the position and orien...

Core concept: silicene.

In 2003, physicists from the University of Manchester isolated flakes of graphene, a single layer of carbon atoms arranged in a honeycomb. The researchers described their methods in 2004 (1), and in 2010 they were awarded the Nobel Prize in Physics for discovering the wonder substance. Since then, researchers have shown that the 2D carbon material conducts electricity and is stronger than steel...

Making stripes

omites, the precursors of vertebrae, striated muscle, and dermis, are laid down in a timed sequence from anterior to posterior. Now, Alexander Aulehla, Bernhard Herrmann (Max-PlanckInstitut für Immunbiologie, Freiburg, Germany), and colleagues report that a gradient and two dueling molecular clocks, all driven directly or indirectly by Wnt3a, combine to create the striped pattern of somites. Th...