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Quantum experts review major techniques for isolating Majoranas

Quantum experts review major techniques for isolat

Story tips from the Department of Energy's Oak Ridge National Laboratory, December 2022

Naturally derived materials fit for 3D printing; Next-gen hydropower starts with testing; Long-haul trucking meets megawatt-scale charging; New insights advance

Vivien Zapf Named Deputy Director of ORNL Quantum Science Center

Quantum Building Blocks

Reading time ( words) Oak Ridge National Laboratory scientists demonstrated that an electron microscope can be used to selectively remove carbon atoms from graphene’s atomically thin lattice and stitch transition-metal dopant atoms in their place. This method could open the door to making quantum building blocks that can interact to produce exotic electronic, magnetic and topological properties.  This is the first precision positioning of transition-metal dopants in graphene. The produced graphene-dopant complexes can exhibit atomic-like behavior, inducing desired properties in the graphene. “What could you build if you could put any atoms exactly where you want? Just about anything,” ORNL’s Ondrej Dyck said. He co-led the study with Stephen Jesse at ORNL’s Center for Nanophase Materials Sciences.