Nanostructured Carbon Allotropes with Weyl-like Loops and Points

Escherynes: Novel carbon allotropes with belt shapes

A new family of belt-shaped carbon structures, called Escherynes, is theoretically proposed using the octadehydro annulene (ODA) skeleton as a building block. Several ODA rings are fused together and cyclized to form belt-structures. Two isomeric forms of the Escherynes are considered, Hückel and Möbius. We demonstrate that these compounds have thermodynamical and kinetic stabilities comparable...

The era of carbon allotropes.

Carbon is the element in the periodic table that provides the basis for life on Earth. It is also important for many technological applications, ranging from drugs to synthetic materials. This role is a consequence of carbon’s ability to bind to itself and to nearly all elements in almost limitless variety. The resulting structural diversity of organic compounds and molecules is accompanied by ...

NITech - LFG joint workshop on carbon allotropes

Novamene: A new class of carbon allotropes

We announce a new class of carbon allotropes. The basis of this new classification resides on the concept of combining hexagonal diamond (sp3 bonded carbon - lonsdaleite) and ring carbon (sp2 bonded carbon - graphene). Since hexagonal diamond acts as an insulator and sp2 bonded rings act as conductors, these predicted materials have potential applications for transistors and other electronic co...

Weyl semimetals in optical lattices: moving and merging of Weyl points, and hidden symmetry at Weyl points

We propose to realize Weyl semimetals in a cubic optical lattice. We find that there exist three distinct Weyl semimetal phases in the cubic optical lattice for different parameter ranges. One of them has two pairs of Weyl points and the other two have one pair of Weyl points in the Brillouin zone. For a slab geometry with (010) surfaces, the Fermi arcs connecting the projections of Weyl points...