title: Electric-Field-Driven Resistive Switching in the Dissipative Hubbard Model.
abstract: We study how strongly correlated electrons on a dissipative lattice evolve out of equilibrium under a constant electric field, focusing on the extent of the linear regime and hysteretic nonlinear effects at higher fields. We access the nonequilibrium steady states, nonperturbatively in both the field and the electronic interactions, by means of a nonequilibrium dynamical mean-field theory in the Coulomb gauge. The linear response regime, limited by Joule heating, breaks down at fields much smaller than the quasiparticle energy scale. For large electronic interactions, strong but experimentally accessible electric fields can induce a resistive switching by driving the strongly correlated metal into a Mott insulator. We predict a nonmonotonic upper switching field due to an interplay of particle renormalization and the field-driven temperature. Hysteretic I-V curves suggest that the nonequilibrium current is carried through a spatially inhomogeneous metal-insulator mixed state.
authors.affiliation: Department of Physics, State University of New York at Buffalo, Buffalo, New York 14260, USA.
authors.forename: Jiajun
authors.initials: J
authors.lastname: Li
authors.affiliation: Department of Physics, Rutgers University, Piscataway, New Jersey 08854, USA.|Department of Electrical Engineering, Princeton University, New Jersey 08455, USA.
authors.forename: Camille
authors.initials: C
authors.lastname: Aron
authors.affiliation: Department of Physics, Rutgers University, Piscataway, New Jersey 08854, USA.
authors.forename: Gabriel
authors.initials: G
authors.lastname: Kotliar
authors.affiliation: Department of Physics, State University of New York at Buffalo, Buffalo, New York 14260, USA.
authors.forename: Jong E
authors.initials: JE
authors.lastname: Han