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Transport and superconductivity at topological surfaces and interfaces

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If you have a question about this talk, please contact Teri Bartlett.

In this talk I will introduce some transport properties of 3D topological insulators. The locking between spin and momentum direction can provide a large and linear magnetoresistance and can create a spin polarization due to charge current. I will then outline why new electronic phases emerge at the interface with superconductors. Our experimental efforts have concentrated on inducing superconductivity into Bi based 3D topological insulators by the proximity effect from superconducting Nb. Josephson junctions and superconducting quantum interference devices have been realized that provide insight into the prospects of using TI-S hybrids towards Majorana detection and topological quantum computation.

This talk is part of the Semiconductor Physics Group Seminars series.

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