Quirky response to magnetism presents quantum physics mystery

In a new study just published and highlighted as an Editor's Suggestion in Physical Review Letters, scientists describe the quirky behavior of one such magnetic topological insulator. The paper includes experimental evidence that intrinsic magnetism in the bulk of manganese bismuth telluride (MnBi2Te4) also extends to the electrons on its electrically conductive surface. Such materials could be just right for making qubits, but this one doesn't obey the rules.