322 citations · 569 across the 7 of their papers we have counts for
7 papers
Gate-tunable high mobility remote-doped InSb/In_{1-x}Al_{x}Sb quantum well heterostructures
Wei Yi, Andrey A. Kiselev, Jacob Thorp +13
Gate-tunable high-mobility InSb/In_{1-x}Al_{x}Sb quantum wells (QWs) grown on GaAs substrates are reported. The QW two-dimensional electron gas (2DEG) channel mobility in excess of…
Visualizing Electrical Breakdown and ON/OFF States in Electrically Switchable Suspended Graphene Break Junctions
Hang Zhang, Wenzhong Bao, Zeng Zhao +8
Narrow gaps are formed in suspended single to few layer graphene devices using a pulsed electrical breakdown technique. The conductance of the resulting devices can be programmed b…
Transport Spectroscopy of Symmetry-Broken Insulating States in Bilayer Graphene
J. Velasco, L. Jing, W. Bao +11
The flat bands in bilayer graphene(BLG) are sensitive to electric fields E\bot directed between the layers, and magnify the electron-electron interaction effects, thus making BLG a…
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…
Quantum Transport and Field Induced Insulating States in Bilayer Graphene pnp Junctions
Lei Jing, Jairo Velasco, Philip Kratz +4
We perform transport measurements in high quality bilayer graphene pnp junctions with suspended top gates. At a magnetic field B=0, we demonstrate band gap opening by an applied pe…
Magnetoconductance Oscillations in High-Mobility Suspended Bilayer and Trilayer Graphene
Wenzhong Bao, Zeng Zhao, Hang Zhang +6
We report pronounced magnetoconductance oscillations observed on suspended bilayer and trilayer graphene devices with mobilities up to 270,000 cm2/Vs. For bilayer devices, we obser…
Probing Charging and Localization in the Quantum Hall Regime by Graphene pnp Junctions
Jairo Velasco, Gang Liu, Lei Jing +4
Using high quality graphene pnp junctions, we observe prominent conductance fluctuations on transitions between quantum Hall (QH) plateaus as the top gate voltage Vtg is varied. In…