Topological insulators are “strange” materials, insulators on the inside and conductors on the surface. They also have properties that make them excellent candidates for the development of spintronics (“spin-based electronics”) and more in general quantum computing. However, they are also elusive as their properties are extremely difficult to observe. Now a study, proposes a new family of materials whose topological state can be directly observed experimentally, thus simplifying things for researchers.

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