graphene

A Tokyo University of Science team has observed first-order matter-wave diffraction of positronium passing through a few-layer graphene grating, the first direct evidence that the short-lived electron-positron atom behaves as one coherent quantum object and a step toward gravity tests on antimatter.

Researchers at the Indian Institute of Science report a quantum-critical electron fluid in graphene with viscosity near the theoretical lower bound and a dramatic decoupling of heat and charge transport.

Researchers achieved reversible switching between graphene polytypes at 30-nanometer scale using sub-nanonewton forces and sub-femtojoule energy, opening a path to slidetronic memory and neuromorphic computing.