The unique ability of carbon atoms to participate in robust covalent bonds with other carbon
atoms in diverse hybridization states (sp, sp 2, sp 3) or with nonmetallic elements enables …

This review provides a discussion of the current state of research on linear carbon structures
and related materials based on sp-hybridization of carbon atoms (polyynes and cumulenes) …

We report an extensive study of the properties of carbyne using first-principles calculations.
We investigate carbyne's mechanical response to tension, bending, and torsion …

Carbyne, the sp 1-hybridized phase of carbon, is still a missing link in the family of carbon
allotropes. While the bulk phases of carbyne remain elusive, the elementary constituents …

First-principles calculations for carbyne under strain predict that the Peierls transition from
symmetric cumulene to broken-symmetry polyyne structure is enhanced as the material is …

The last two decades have witnessed a tremendous growth in the development and
understanding of sp 2 carbon-based nanostructures. The impact of this research has led to a …

Linear carbon chains (LCCs) are a one-dimensional sp 1-hybridized allotrope of carbon.
LCCs are extremely unstable: The longer the LCCs, the less stable the materials. Thus, it is …

Graphene, nanotubes and other carbon nanostructures have shown potential as candidates
for advanced technological applications due to the different coordination of carbon atoms …

In this paper we report the characterization of linear carbon chains encapsulated in
multiwalled carbon nanotubes by using Raman spectroscopy and transmission electron …

Linear strings of sp 1-hybridized carbon atoms are considered as a possible phase of
carbon since decades. Whereas the debate about the stability of the corresponding bulk …