New topological superconductivity in multilayered graphene sheets. Graphene is a strange material. Understanding its properties is both a fundamental question of science and a promising avenue for new technologies. A team of researchers from the Institute of Science and Technology Austria (ISTA) an
A result from the simulations of stacked graphene layers. The image depicts the so-called Berry curvature that confirms the topological character of the superconductivity. Credit: © Areg GhazaryanGraphene is a strange material. Understanding its properties is both a fundamental question of science and a promising avenue for new technologies.
in Israel have been studying graphene for years and have now published their newest findings on its superconducting properties in a research paper published on March 2 in the journalFour layers of graphene in ABCA stacking. Four sheets of carbon atoms in two-dimensional honeycomb lattices stacked on top of each other, each one shifted to the left with respect to the one underneath. The top layer is shifted so much that its structure again aligns with the bottom layer.
Researchers Maksym Serbyn and Areg Ghazaryan. Credit: © Nadine Poncioni and Areg Ghazaryan respectively.This kind of theoretical research lays the foundations for future experiments that will create the simulated graphene systems in a laboratory to see if they really behave as predicted. “Our work helps the experimentalists to design new setups without having to try out every configuration of graphene layers,” Ghazaryan says.
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