Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- California Institute of TechnologyUS2.6k papers
- Centre National de la Recherche ScientifiqueFR2k papers
- Massachusetts Institute of TechnologyUS1.9k papers
- University of FloridaUS1.8k papers
- Carnegie Mellon UniversityUS1.7k papers
- Princeton UniversityUS1.7k papers
- University of RochesterUS1.7k papers
- Purdue University West LafayetteUS1.6k papers
- Johns Hopkins UniversityUS1.6k papers
- University of Maryland, College ParkUS1.6k papers
- The Ohio State UniversityUS1.6k papers
- University of California, Santa BarbaraUS1.6k papers
14 papers · 2 filters
Ultrafast Relaxation Dynamics of Hot Optical Phonons in Graphene
Haining Wang, Jared H. Strait, Paul A. George +8
Using ultrafast optical pump-probe spectroscopy, we study the relaxation dynamics of hot optical phonons in few-layer and multi-layer graphene films grown by epitaxy on silicon car…
Signatures of Klein tunneling in disordered graphene p-n-p junctions
E. Rossi, J. H. Bardarson, P. W. Brouwer +1
We present a method for obtaining quantum transport properties in graphene that uniquely combines three crucial features: microscopic treatment of charge disorder, fully quantum me…
Spin Aharonov-Bohm effect and topological spin transistor
Joseph Maciejko, Eun-Ah Kim, Xiao-Liang Qi
Ever since its discovery, the electron spin has only been measured or manipulated through the application of an electromagnetic force acting on the associated magnetic moment. In t…
Photo-Thermoelectric Effect at a Graphene Interface Junction
Xiaodong Xu, Nathaniel M. Gabor, Jonathan S. Alden +2
We investigate the optoelectronic response of a graphene interface junction, formed with bilayer and single-layer graphene, by photocurrent (PC) microscopy. We measure the polarity…
Single-shot time-domain studies of spin-torque-driven switching in magnetic tunnel junctions
Y. -T. Cui, G. Finocchio, C. Wang +3
We report single-shot measurements of resistance versus time for thermally assisted spin-torque-driven switching in magnetic tunnel junctions. We achieve sufficient sensitivity to…
Back-action Evading Measurements of Nanomechanical Motion
J. B. Hertzberg, T. Rocheleau, T. Ndukum +3
When performing continuous measurements of position with sensitivity approaching quantum mechanical limits, one must confront the fundamental effects of detector back-action. Back-…
Sensitivity of spin-torque diodes for frequency-tunable resonant microwave detection
C. Wang, Y. -T. Cui, J. Z. Sun +3
We calculate the efficiency with which magnetic tunnel junctions can be used as resonant detectors of incident microwave radiation via the spin-torque diode effect. The expression…
Measurements of the Carrier Dynamics and Terahertz Response of Oriented Germanium Nanowires using Optical-Pump Terahertz-Probe Spectroscopy
Jared H. Strait, Paul A. George, Mark Levendorf +3
We have measured the terahertz response of oriented germanium nanowires using ultrafast optical-pump terahertz-probe spectroscopy. We present results on the time, frequency, and po…
Enhanced triplet Andreev reflection off a domain wall in a lateral geometry
Joern N. Kupferschmidt, Piet W. Brouwer
We find that the triplet Andreev reflection amplitude at the interface between a half-metal and an s-wave superconductor in the presence of a domain wall is significantly enhanced…
Thermal Probing of Energy Dissipation in Current-Carrying Carbon Nanotubes
Li Shi, Jianhua Zhou, Philip Kim +3
The temperature distributions in current-carrying carbon nanotubes have been measured with a scanning thermal microscope. The obtained temperature profiles reveal diffusive and dis…
Electrostatic confinement of electrons in an integrable graphene quantum dot
J. H. Bardarson, M. Titov, P. W. Brouwer
We compare the conductance of an undoped graphene sheet with a small region subject to an electrostatic gate potential for the cases that the dynamics in the gated region is regula…
Spin torque from tunneling through impurities in a magnetic tunnel junction
Turan Birol, Piet W. Brouwer
We calculate the contribution to the spin transfer torque from sequential tunneling through impurities in a magnetic tunnel junction. For a junction with weakly polarized ferromagn…
Perfect Reflection of Chiral Fermions in Gated Graphene Nanoribbons
Jesse M. Kinder, Jonathan J. Dorando, Haitao Wang +1
We describe the results of a theoretical study of transport through gated metallic graphene nanoribbons using a non-equilibrium Green function method. Although analogies with quant…
Carrier Recombination and Generation Rates for Intravalley and Intervalley Phonon Scattering in Graphene
Farhan Rana, Paul A. George, Jared H. Strait +4
Electron-hole generation and recombination rates for intravalley and intervalley phonon scattering in Graphene are presented. The transverse and the longitudinal optical phonon mod…