The ultra-relativistic nature of electrons in graphene relates to a topological property of their wave-functions.

We predict that long-lived excitons with very large binding energies can also exist in a single or few layers of monochalcogenides such as GaSe.

Graphene is a wonder material that possesses many outstanding properties, including extraordinary strength, stiffness and high flexibility, which make it a very good candidate to withstand ultrahigh pressure.

Fossil amber offers the unique opportunity to investigate an amorphous material that has been exploring its energy landscape for more than 110 million years of natural aging.

Both structural glasses and disordered crystals are known to exhibit anomalous thermal, vibrational, and acoustic properties at low temperatures or low energies, what is still a matter of lively debate.