Physicists create artificial 'graphene' (Nanowerk News) An international group of physicists led by the University of Arkansas has created an artificial material with a structure comparable to graphene.

Weve basically created the first artificial graphene-like structure with transition metal atoms in place of carbon atoms, said Jak Chakhalian, professor of physics and director of the Artificial Quantum Materials Laboratory at the U of A.

In 2014, Chakhalian was selected as a quantum materials investigator for the Gordon and Betty Moore Foundation. His selection came with a $1.8 million grant, a portion of which funded the study,

Graphene, discovered in 2004, is a one-atom-thick sheet of graphite. Graphene transistors are predicted to be substantially faster and more heat tolerant than todays silicon transistors and may result in more efficient computers and the next-generation of flexible electronics. Its discoverers were awarded the Nobel Prize in physics in 2010.

The U of A-led group published its findings this week in Physical Review Letters ("Mott Electrons in an Artificial Graphenelike Crystal of Rare-Earth Nickelate").

(© American Physical Society)

This discovery gives us the ability to create graphene-like structures for many other elements, said Srimanta Middey, a postdoctoral research associate at the U of A who led the study.

The research group also included U of A postdoctoral research associates Michael Kareev and Yanwei Cao, doctoral student Xiaoran Liu and recent doctoral graduate Derek Meyers, now at Brookhaven National Laboratory.