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Distinct quantum anomalous Hall ground states induced by magnetic disorders
Chang Liu, Yunbo Ou, Yang Feng +8
The quantum anomalous Hall (QAH) effect in magnetic topological insulator (TI) represents a new state of matter originated from the interplay between topology and magnetism. The de…
Signatures of long-range-correlated disorder in the magnetotransport of ultrathin topological insulators
D. Nandi, B. Skinner, G. H. Lee +10
In an ultrathin topological insulator (TI) film, a hybridization gap opens in the TI surface states, and the system is expected to become either a trivial insulator or a quantum sp…
Enhanced electron dephasing in three-dimensional topological insulators
Jian Liao, Yunbo Ou, Haiwen Liu +4
Study of the dephasing in electronic systems is not only important for probing the nature of their ground states, but also crucial to harnessing the quantum coherence for informati…
Gate-Variable Mid-Infrared Optical Transitions in a Topological Insulator
William S. Whitney, Victor W. Brar, Yunbo Ou +6
We report mid-infrared spectroscopy measurements of an electrostatically gated topological insulator, in which we observe several percent modulation of transmittance and reflectanc…
Experimental Observation of the Quantum Anomalous Hall Effect in a Magnetic Topological Insulator
Cui-Zu Chang, Jinsong Zhang, Xiao Feng +20
The quantized version of the anomalous Hall effect has been predicted to occur in magnetic topological insulators, but the experimental realization has been challenging. Here, we r…
Observation of Anderson localization in ultrathin films of three-dimensional topological insulators
Jian Liao, Yunbo Ou, Xiao Feng +8
Anderson localization, the absence of diffusive transport in disordered systems, has been manifested as hopping transport in numerous electronic systems, whereas in recently discov…