Signatures of evanescent mode transport in graphene

Signatures of evanescent transport in ballistic suspended graphene-superconductor junctions

In Dirac materials, the low energy excitations behave like ultra-relativistic massless particles with linear energy dispersion. A particularly intriguing phenomenon arises with the intrinsic charge transport behavior at the Dirac point where the charge density approaches zero. In graphene, a 2-D Dirac fermion gas system, it was predicted that charge transport near the Dirac point is carried by ...

Transport through evanescent waves in ballistic graphene quantum dots

Signatures of dynamic screening in interfacial thermal transport of graphene

Zhun-Yong Ong,1,* Massimo V. Fischetti,1 Andrey Y. Serov,2,3 and Eric Pop2,3,4,† 1Department of Materials Science & Engineering, University of Texas at Dallas RL10, Texas 75080, USA 2Department of Electrical & Computer Engineering, University of Illinois, Urbana-Champaign, Urbana, Illinois 61801, USA 3Micro and Nanotechnology Lab, University of Illinois, Urbana-Champaign, Illinois 61801, USA 4B...

Multiterminal single-molecule–graphene-nanoribbon junctions with the thermoelectric figure of merit optimized via evanescent mode transport and gate voltage

We propose thermoelectric devices where a single molecule is connected to two metallic zigzag graphene nanoribbons (ZGNRs) via highly transparent contacts that allow the injection of evanescent wave functions from ZGNRs. Their overlap generates a peak in the electronic transmission that is largely insensitive to the type of the short conjugated molecule, while ZGNRs additionally suppress hole-l...

Thermal Transport Signatures of Broken-Symmetry Phases in Graphene.

In the half filled zero-energy Landau level of bilayer graphene, competing phases with spontaneously broken symmetries and an intriguing quantum critical behavior have been predicted. Here we investigate signatures of these broken-symmetry phases in thermal transport measurements. To this end, we calculate the spectrum of spin and valley waves in the ν=0 quantum Hall state of bilayer graphene. ...