444 citations · 757 across the 7 of their papers we have counts for
7 papers
Gate field effects on the topological insulator BiSbTeSe2 interface
Shuanglong Liu, Yang Xu, Yun-Peng Wang +3
Interfaces between two topological insulators are of fundamental interest in condensed matter physics. Inspired by experimental efforts, we study interfacial processes between two…
Tuning insulator-semimetal transitions in 3D topological insulator thin films by inter-surface hybridization and in-plane magnetic fields
Yang Xu, Guodong Jiang, Ireneusz Miotkowski +2
A pair of Dirac points (analogous to a vortex-antivortex pair) associated with opposite topological numbers (with Berry phases) can be merged together through parameter tuni…
Transport measurements in twisted bilayer graphene: Electron-phonon coupling and Landau level crossing
Ting-Fung Chung, Yang Xu, Yong P. Chen
We investigate electronic transport in twisted bilayer graphene (tBLG) under variable temperatures (), carrier densities (), and transverse magnetic fields, focusing on sampl…
Quantum transport of two-species Dirac fermions in dual-gated three-dimensional topological insulators
Yang Xu, Ireneusz Miotkowski, Yong P. Chen
Topological insulators are a novel class of quantum matter with a gapped insulating bulk yet gapless spin helical Dirac fermion conducting surface states. Here, we report local and…
Observation of topological surface state quantum Hall effect in an intrinsic three-dimensional topological insulator
Yang Xu, Ireneusz Miotkowski, Chang Liu +7
A three-dimensional (3D) topological insulator (TI) is a quantum state of matter with a gapped insulating bulk yet a conducting surface hosting topologically-protected gapless surf…
Controlling and distinguishing electronic transport of topological and trivial surface states in a topological insulator
Helin Cao, Chang Liu, Jifa Tian +4
Topological insulators (TI), with characteristic Dirac-fermion topological surface states (TSS), have emerged as a new class of electronic materials with rich potentials for both n…
Tuning a Schottky barrier in a photoexcited topological insulator with transient Dirac cone electron-hole asymmetry
M. Hajlaoui, E. Papalazarou, J. Mauchain +19
The advent of Dirac materials has made it possible to realize two dimensional gases of relativistic fermions with unprecedented transport properties in condensed matter. Their phot…