234 citations · 5.3k across the 102 of their papers we have counts for
9 papers · 2 filters
Coulomb drag in monolayer and bilayer graphene
E. H. Hwang, Rajdeep Sensarma, S. Das Sarma
We theoretically calculate the interaction-induced frictional Coulomb drag resistivity between two graphene monolayers as well as between two graphene bilayers, which are spatially…
Comparison of microscopic models for disorder in bilayer graphene: Implications for the density of states and the optical conductivity
D. S. L. Abergel, Hongki Min, E. H. Hwang +1
We study the effects of disorder on bilayer graphene using four different microscopic models and directly compare their results. We compute the self-energy, density of states, and…
Temperature-dependent compressibility in graphene and two-dimensional systems
Qiuzi Li, E. H. Hwang, S. Das Sarma
We calculate the finite temperature compressibility for two-dimensional semiconductor systems, monolayer graphene, and bilayer graphene within the Hartree-Fock approximation. We fi…
Disorder by order in graphene
S. Das Sarma, E. H. Hwang, Qiuzi Li
We predict the existence of an intriguing "disorder by order" phenomenon in graphene transport where higher quality (and thus more ordered) samples, while having higher mobility at…
dmu/dn In suspended bilayer graphene: the interplay of disorder and band gap
D. S. L. Abergel, H. Min, E. H. Hwang +1
We present an interpretation of recent experimental measurements of dmu/dn in suspended bilayer graphene samples. We demonstrate that the data may be quantitatively described by as…
Coulomb drag in graphene
E. H. Hwang, S. Das Sarma
We calculate theoretically the Coulomb drag resistivity for two graphene monolayers spatially separated by a distance "". We show that the frictional drag induced by inter-layer…
Disorder-induced temperature-dependent transport in graphene: Puddles, impurities, activation, and diffusion
Qiuzi Li, E. H. Hwang, S. Das Sarma
We theoretically study the transport properties of both monolayer and bilayer graphene in the presence of electron-hole puddles induced by charged impurities which are invariably p…
Optical and transport gaps in gated bilayer graphene
Hongki Min, D. S. L. Abergel, E. H. Hwang +1
We discuss the effect of disorder on the band gap measured in bilayer graphene in optical and transport experiments. By calculating the optical conductivity and density of states u…
Correlations, Plasmarons, and Quantum Spectral Function in Bilayer Graphene
Rajdeep Sensarma, E. H. Hwang, S. Das Sarma
We theoretically study the many-body effects of electron electron interaction on the single particle spectral function of doped bilayer graphene. Using random phase approximation,…