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Topological Insulator

All articles tagged with #topological insulator

science-and-technology2 years ago

Revolutionary Material Boosts Electronics Efficiency.

Researchers from the University of Twente have discovered that germanene, a two-dimensional material made of germanium atoms, behaves as a topological insulator, making it more energy-efficient than current electronic materials. Germanene is unique in that it's made from just a single element, and it has the ability to switch between "on" and "off" states, comparable to transistors. This paves the way for designing topological field-effect transistors that could replace traditional transistors in electronic devices, resulting in electronics that no longer heat up.

physics2 years ago

Quantum Effect Achieved Without Edges in Experiments

Physicists at RIKEN have demonstrated Laughlin charge pumping in a quantum anomalous Hall insulator using a disk-shaped device without edge channels connecting the two electrodes, overturning the assumption that electronic states in these edges were crucial for supporting the quantum anomalous Hall insulator. This opens the way for realizing other novel electronic behavior in quantum anomalous Hall materials.