796 citations · 3.3k across the 42 of their papers we have counts for
4 papers · 1 filter
High Mobility Ambipolar MoS2 Field-Effect Transistors: Substrate and Dielectric Effects
Wenzhong Bao, Xinghan Cai, Dohun Kim +2
We fabricate MoS2 field effect transistors on both SiO2 and polymethyl methacrylate (PMMA) dielectrics and measure charge carrier mobility in a four-probe configuration. For multil…
Coherent Topological Transport on the Surface of Bi2Se3
Dohun Kim, Paul Syers, Nicholas P. Butch +2
The two-dimensional (2D) surface state of the three-dimensional strong topological insulator (STI) is fundamentally distinct from other 2D electron systems in that the Fermi arc en…
Intrinsic Electron-Phonon Resistivity in Bi2Se3 in the Topological Regime
Dohun Kim, Qiuzi Li, Paul Syers +4
We measure the temperature-dependent carrier density and resistivity of the topological surface state of thin exfoliated Bi2Se3 in the absence of bulk conduction. When the gate-tun…
Topological insulator quantum dot with tunable barriers
Sungjae Cho, Dohun Kim, Paul Syers +3
Thin (6-7 quintuple layer) topological insulator Bi2Se3 quantum dot devices are demonstrated using ultrathin (2~4 quintuple layer) Bi2Se3 regions to realize semiconducting barriers…