May 8 (UPI) -- The study of a unique crystalline material, composed of aluminum and platinum atoms, has revealed a pair of electronic properties that have never been seen before. The atoms in the new materials are crystallized in a special pattern, with each row offset from the other. The pattern creates a spiral staircase of aluminum and platinum atoms. According to the new study, published this week in the journal Nature Physics, the material's unique crystalline structure produces Rarita-Schwinger fermions in its interior and extremely long quadruple topological Fermi arcs on its surface. Rarita-Schwinger fermions are a type of...
