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Monday, February 13 2017

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There has been great interest in novel materials demonstrating exotic quantum phases of matter, such as three-dimensional topological insulators. These materials are characterized by an insulating bulk surrounded by two-dimensional conducting surface states that are protected by time-reversal symmetry. Topological insulators can be transformed into exotic superconductors with unconventional pairing by either coupling them with s-wave superconductors or chemically doping them.