262 citations · 709 across the 9 of their papers we have counts for
9 papers
Raman spectra and electron-phonon coupling in disordered graphene with gate-tunable doping
Isaac Childres, Luis A. Jauregui, Yong P. Chen
We report a Raman spectroscopy study of graphene field-effect transistors (GFET) with a controlled amount of defects introduced in graphene by exposure to electron-beam irradiation…
Gate-tunable and high responsivity graphene phototransistors on undoped semiconductor substrates
Biddut K. Sarker, Isaac Childres, Edward Cazalas +2
Due to its high charge carrier mobility, broadband light absorption, and ultrafast carrier dynamics, graphene is a promising material for the development of high-performance photod…
Topological insulator based spin valve devices: evidence for spin polarized transport of spin-momentum-locked topological surface states
Jifa Tian, Isaac Childres, Helin Cao +3
Spin-momentum helical locking is one of the most important properties of the nontrivial topological surface states (TSS) in 3D topological insulators (TI). It underlies the iconic…
Planning the Future of U.S. Particle Physics (Snowmass 2013): Chapter 8: Instrumentation Frontier
M. Demarteau, R. Lipton, H. Nicholson +211
These reports present the results of the 2013 Community Summer Study of the APS Division of Particles and Fields ("Snowmass 2013") on the future program of particle physics in the…
Quantum Hall Effects in Monolayer-Bilayer Graphene Planar Junctions
Jifa Tian, Yongjin Jiang, Isaac Childres +3
The Hall resistance of a homogeneous electron system is well known to be anti-symmetric with respect to the magnetic field and the sign of charge carriers. We have observed that su…
AFM and Raman studies of topological insulator materials subject to argon plasma etching
Isaac Childres, Jifa Tian, Ireneusz Miotkowski +1
Plasma etching is an important tool in nano-device fabrication. We report a study on argon plasma etching of topological insulator materials Bi2Se3, Bi2Te3, Sb2Te3 and Bi2Te2Se usi…