The aluminum plates were attached to the topological insulator using platinum. The picture (scale bar: 200?nm) shows one of the devices used in the experiment. Because of the stress, induced by various cool downs, a clear buckling feature appears in the nanogap of the device. This modification is causing the characteristics of the superconducting pairs of electron to vary in different directions, a signature of unconventional superconductivity. Credit: Thilo Bauch and Floriana Lombardi/Chalmers University of Technology
They have probably succeeded in creating a topological superconductor. With their insensitivity to decoherence what are known as Majorana particles could become stable building blocks of a quantum computer...
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