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Hedgehog Spin-texture and Berry's Phase tuning in a Magnetic Topological Insulator
Su-Yang Xu, Madhab Neupane, Chang Liu +18
Understanding and control of spin degrees of freedom on the surfaces of topological materials are key to future applications as well as for realizing novel physics such as the axio…
A topological crystalline insulator (TCI) phase via topological phase transition and crystalline mirror symmetry
Su-Yang Xu, Chang Liu, Nasser Alidoust +18
A Z2 topological insulator protected by time-reversal symmetry is realized via spin-orbit interaction driven band inversion. For example, the topological phase in the Bi-Sb system…
Topological-Metal to Band-Insulator Transition in (Bi1-xInx)2Se3 Thin Films
Matthew Brahlek, Namrata Bansal, Nikesh Koirala +5
By combining transport and photo emission measurements on (Bi1-xInx)2Se3 thin films, we report that this system transforms from a topologically non-trivial metal into a topological…
Topological insulator Bi2Te3 films synthesized by metal organic chemical vapor deposition
Helin Cao, Rama Venkatasubramanian, Chang Liu +5
Topological insulator (TI) materials such as Bi2Te3 and Bi2Se3 have attracted strong recent interests. Large scale, high quality TI thin films are important for developing TI-based…
Observation of Topological Crystalline Insulator phase in the lead tin chalcogenide Pb1-xSnxTe material class
Su-Yang Xu, Chang Liu, N. Alidoust +11
We perform systematic angle-resolved photoemission spectroscopic measurements on the lead tin telluride Pb1-xSnxTe pseudobinary alloy system. We show that the (001) crystalline sur…
Magnetically induced spin reorientation on the surface of a topological insulator (a surface magnetic topological insulator MBE film)
Su-Yang Xu, M. Neupane, Chang Liu +18
The surface of topological insulators is proposed as a promising platform for spintronics and quantum information applications. In particular, when time- reversal symmetry is broke…