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Charge-Density-Wave Proximity Effects in Graphene
Boram Kim, Jeehoon Park, Jinshu Li +11
Certain layered transition metal dichalcogenides (TMDCs), such as 1T-TaS2, show a rich collection of charge density wave (CDW) phases at different temperatures, and their atomic st…
Phonon-induced giant linear-in- resistivity in magic angle twisted bilayer graphene: Ordinary strangeness and exotic superconductivity
Fengcheng Wu, Euyheon Hwang, Sankar Das Sarma
We study the effect of electron-acoustic phonon interactions in twisted bilayer graphene on resistivity in the high-temperature transport and superconductivity in the low-temperatu…
Carrier and strain tunable intrinsic magnetism in two-dimensional MAX transition metal chalcogenides
Bheema Lingam Chittari, Dongkyu Lee, Allan H. MacDonald +2
We present a density functional theory study of the carrier-density and strain dependence of magnetic order in two-dimensional (2D) MAX (M= V, Cr, Mn, Fe, Co, Ni; A= Si, Ge, Sn…
Large negative transconductance in multilayer graphene: The role of intersubband scattering
Seungchan Woo, E. H. Hwang, Hongki Min
We calculate the transport properties of multilayer graphene, considering the effect of multisubband scattering in a high density regime, where higher subbands are occupied by char…
Electronic and magnetic properties of single-layer MPX metal phosphorous trichalcogenides
Bheema Lingam Chittari, Youngju Park, Dongkyu Lee +4
We systematically investigate the electronic structure and magnetic properties of two dimensional (2D) MPX (M= V, Cr, Mn, Fe, Co, Ni, Cu, Zn, and X = S, Se, Te) transition meta…
Screening and transport in 2D semiconductor systems at low temperatures
S. Das Sarma, E. H. Hwang
Low temperature carrier transport properties in two-dimensional (2D) semiconductor systems can be theoretically well-understood within a mean-field type RPA-Boltzmann theory as bei…
Stacking dependence of carrier-interactions in multilayer graphene systems
Yunsu Jang, E. H. Hwang, A. H. MacDonald +1
We identify qualitative trends in the stacking sequence dependence of carrier-carrier interaction phenomena in multilayer graphene. Our theory is based on a new approach which expl…
Electronic transport in two dimensional graphene
S. Das Sarma, Shaffique Adam, E. H. Hwang +1
We provide a broad review of fundamental electronic properties of two-dimensional graphene with the emphasis on density and temperature dependent carrier transport in doped or gate…
Collective modes of the massless Dirac plasma
S. Das Sarma, E. H. Hwang
We develop a theory for the long-wavelength plasma oscillation of a collection of charged massless Dirac particles in a solid, as occurring for example in doped graphene layers, in…
Theory of thermopower in 2D graphene
E. H. Hwang, E. Rossi, S. Das Sarma
Motivated by recent experiments [1-3] we calculate the thermopower of graphene incorporating the energy dependence of various transport scattering times. We find that scattering by…
Screening induced temperature dependent transport in 2D graphene
E. H. Hwang, S. Das Sarma
We calculate the temperature dependent conductivity of graphene in the presence of randomly distributed Coulomb impurity charges arising from the temperature dependent screening of…
Acoustic phonon scattering limited carrier mobility in 2D extrinsic graphene
E. H. Hwang, S. Das Sarma
We theoretically calculate the phonon scattering limited electron mobility in extrinsic (i.e. gated or doped with a tunable and finite carrier density) 2D graphene layers as a func…
Measurement of Scattering Rate and Minimum Conductivity in Graphene
Y. -W. Tan, Y. Zhang, K. Bolotin +6
The conductivity of graphene samples with various levels of disorder is investigated for a set of specimens with mobility in the range of cm/V sec. Comparing t…
A self-consistent theory for graphene transport
Shaffique Adam, E. H. Hwang, Victor Galitski +1
We demonstrate theoretically that most of the observed transport properties of graphene sheets at zero magnetic field can be explained by scattering from charged impurities. We fin…
Carrier transport in 2D graphene layers
E. H. Hwang, S. Adam, S. Das Sarma
Carrier transport in gated 2D graphene monolayers is theoretically considered in the presence of scattering by random charged impurity centers with density . Excellent quantit…