575 citations · 702 across the 8 of their papers we have counts for
8 papers
Valence transition in topological Kondo insulator
Jia-Tao Zhuang, Xiao-Jun Zheng, Zhi-Yong Wang +4
We investigate the valence transition in three-dimensional topological Kondo insulator through slave-boson analysis of periodic Anderson model. By including the effect of intra-ato…
Magnetic and topological transitions in three-dimensional topological Kondo insulator
Huan Li, Zhi-Yong Wang, Xiao-Jun Zheng +2
By using an extended slave-boson method, we draw a global phase diagram summarizing both magnetic phases and paramagnetic (PM) topological insulating phases (TI) in three-dimen…
Approaching quantum anomalous Hall effect in proximity-coupled YIG/graphene/h-BN sandwich structure
Chi Tang, Bin Cheng, Mohammed Aldosary +6
Quantum anomalous Hall state is expected to emerge in Dirac electron systems such as graphene under both sufficiently strong exchange and spin-orbit interactions. In pristine graph…
Proximity-induced ferromagnetism in graphene revealed by anomalous Hall effect
Zhiyong Wang, Chi Tang, Raymond Sachs +2
We demonstrate the anomalous Hall effect (AHE) in single-layer graphene exchange-coupled to an atomically flat yttrium iron garnet (YIG) ferromagnetic thin film. The anomalous Hall…
Field-effect mobility enhanced by tuning the Fermi level into the band gap of Bi2Se3
Peng Wei, Zhiyong Wang, Xinfei Liu +2
By eliminating normal fabrication processes, we preserve the bulk insulating state of calcium-doped Bi2Se3 single crystals in suspended nanodevices, as indicated by the activated t…
77Se NMR Investigation of Fe-doped Bi2Se3
Robert E. Taylor, Hamad M. Alyahyaei, Zhiyong Wang +6
Bismuth selenide is both a thermoelectric material and topological insulator. Defects and dopants create conduction in thermoelectric applications. However, such defects may degrad…
Suspension and Measurement of Graphene and Bi2Se3 Atomic Membranes
Jairo Velasco, Zeng Zhao, Hang Zhang +7
Coupling high quality, suspended atomic membranes to specialized electrodes enables investigation of many novel phenomena, such as spin or Cooper pair transport in these two dimens…
Tuning carrier type and density in Bi2Se3 by Ca-doping
Zhiyong Wang, Tao Lin, Peng Wei +4
The carrier type and density in Bi2Se3 single crystals are systematically tuned by introducing a calcium (Ca) dopant. A carrier density of ~1x1017 cm-3 which corresponds to ~25 meV…