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By applying superconducting electrodes, made of niobium, to a thin crystal flake of bismuth doped with antimony, a superconducting current flows through the material at a temperature of 10 milli Kelvin. In a superconductor, paired electrons, so-called Cooper pairs, are responsible for conduction. This is not the mechanism inside the bismuth: here, Majorana particles are responsible.

Superconductivity where you don’t expect it

The special properties of 'topological materials' typically occur at their surface. These materials, for instance, insulators that do lead current at their surface, are...
New exotic phenomena detected in photonic crystals

New exotic phenomena detected in photonic crystals

Topological impacts, for example, those found in gems whose surfaces direct power while their mass does not, has been an energizing point of material...