Giant Phonon-induced Conductance in Scanning Tunneling Spectroscopy of Gate-tunable Graphene (2008)
Zhang, Yuanbo, Brar, Victor W., Wang, Feng, Girit, Caglar, Yayon, Yossi, Panlasigui, Melissa, ...
The honeycomb lattice of graphene is a unique two-dimensional (2D) system where the quantum mechanics of electrons is equivalent to that of relativistic Dirac fermions. Novel nanometer-scale behavior...
Brar, Victor W., Zhang, Yuanbo, Yayon, Yossi, Bostwick, Aaron, Ohta, Taisuke, McChesney, Jessica L., ...
We present a scanning tunneling spectroscopy (STS) study of the local electronic structure of single and bilayer graphene grown epitaxially on a SiC(0001) surface. Low voltage topographic images...
Energy Band Gap Engineering of Graphene Nanoribbons (2007)
Han, Melinda Y., Oezyilmaz, Barbaros, Zhang, Yuanbo, Kim, Philip
We investigate electronic transport in lithographically patterned graphene ribbon structures where the lateral confinement of charge carriers creates an energy gap near the charge neutrality point....
Brar, Victor W., Zhang, Yuanbo, Yayon, Yossi, Ohta, Taisuke, McChesney, Jessica L., Bostwick, Aaron, ...
Electric Field Effect Tuning of Electron-Phonon Coupling in Graphene (2006)
Yan, Jun, Zhang, Yuanbo, Kim, Philip, Pinczuk, Aron
Gate-modulated low-temperature Raman spectra reveal that the electric field effect (EFE), pervasive in contemporary electronics, has marked impacts on long wavelength optical phonons of graphene. The...
Electronic transport in graphene (2006)
This dissertation focuses on the electronic transport properties of graphene, a single atomic layer of graphite. Graphene is a novel two-dimensional system in which electron transport is effectively...
Experimental Observation of Quantum Hall Effect and Berry's Phase in Graphene (2005)
Zhang, Yuanbo, Tan, Yan-Wen, Stormer, Horst L., Kim, Philip
When electrons are confined in two-dimensional (2D) materials, quantum mechanically enhanced transport phenomena, as exemplified by the quantum Hall effects (QHE), can be observed. Graphene, an...
Zhang, Yuanbo, Small, Joshua P., Pontius, William V., Kim, Philip
We have developed a unique micromechanical method to extract extremely thin graphite samples. Graphite crystallites with thicknesses ranging from 10 - 100 nm and lateral size $\sim$ 2 $\mu$m are...
Electric Field Modulation of Galvanomagnetic Properties of Mesoscopic Graphite (2004)
Zhang, Yuanbo, Small, Joshua P., Amori, Michael E. S., Kim, Philip
Electric field effect devices based on mesoscopic graphite are fabricated for galvanomagnetic measurements. Strong modulation of magneto-resistance and Hall resistance as a function of gate voltage...