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Relativistic magnetotransport in graphene
Markus Mueller, Lars Fritz, Subir Sachdev +1
We study the thermal and electric transport of a fluid of interacting Dirac fermions as they arise in single-layer graphene. We include Coulomb interactions, a dilute density of ch…
Quantum Hall to Insulator Transition in the Bilayer Quantum Hall Ferromagnet
Ganpathy Murthy, Subir Sachdev
We describe a new phase transition of the bilayer quantum Hall ferromagnet at filling fraction . In the presence of static disorder (modeled by a periodic potential), bosonic…
Quantum critical transport in clean graphene
Lars Fritz, Joerg Schmalian, Markus Mueller +1
We describe electrical transport in ideal single-layer graphene at zero applied bias. There is a crossover from collisionless transport at frequencies larger than k_B T/hbar (T is…
Radiation-Induced Magnetoresistance Oscillations in a 2D Electron Gas
Adam C. Durst, Subir Sachdev, N. Read +1
Recent measurements of a 2D electron gas subjected to microwave radiation reveal a magnetoresistance with an oscillatory dependence on the ratio of radiation frequency to cyclotron…
Tunneling gap of laterally separated quantum Hall states
Marcus Kollar, Subir Sachdev
We use a method of matched asymptotics to determine the energy gap of two counter-propagating, strongly interacting, quantum Hall edge states. The microscopic edge state dispersion…
Coulomb interactions at quantum Hall critical points of systems in a periodic potential
Jinwu Ye, Subir Sachdev
We study the consequences of long-range Coulomb interactions at the critical points between integer/fractional quantum Hall states and an insulator. We use low energy theories for…