207 citations · 675 across the 9 of their papers we have counts for
10 papers
Density of states of disordered graphene
Ben Yu-Kuang Hu, E. H. Hwang, S. Das Sarma
We calculate the average single particle density of states in graphene with disorder due to impurity potentials. For unscreened short-ranged impurities, we use the non-self-consist…
Limit to 2D mobility in modulation-doped GaAs quantum structures: How to achieve a mobility of 100 millions
E. H. Hwang, S. Das Sarma
Considering scattering by unintentional background charged impurities and by charged dopants in the modulation doping layer as well as by GaAs acoustic phonons, we theoretically co…
Transport and drag in undoped electron-hole bilayers
E. H. Hwang, S. Das Sarma
We investigate transport and Coulomb drag properties of semiconductor-based electron-hole bilayer systems. Our calculations are motivated by recent experiments in undoped electron-…
Single particle relaxation time versus transport scattering time in a 2D graphene layer
E. H. Hwang, S. Das Sarma
We theoretically calculate and compare the single-particle relaxation time () defining quantum level broadening and the transport scattering time () defining Drude conduc…
Electron-Electron Interactions in Graphene
S. Das Sarma, Ben Yu-Kuang Hu, E. H. Hwang +1
We discuss the validity (or not) of the ring-diagram approximation (i.e. RPA) in the calculation of graphene self-energy in the weak-coupling () limit, showing that RPA…
The quasiparticle spectral function in doped graphene
E. H. Hwang, S. Das Sarma
We calculate the real and imaginary electron self-energy as well as the quasiparticle spectral function in doped graphene taking into account electron-electron interaction in the l…