Electronic transport and dynamics in correlated heterostructures

Abstract

We investigate by means of the time-dependent Gutzwiller approximation the transport properties of a strongly-correlated slab subject to Hubbard repulsion and connected with to two metallic leads kept at a different electrochemical potential. We focus on the real-time evolution of the electronic properties after the slab is connected to the leads and consider both metallic and Mott insulating slabs. When the correlated slab is metallic, the system relaxes to a steady-state that sustains a finite current. The zero-bias conductance is finite and independent of the degree of correlations within the slab as long as the system remains metallic. On the other hand, when the slab is in a Mott insulating state, the external bias leads to currents that are exponentially activated by charge tunneling across the Mott-Hubbard gap, consistent with the Landau-Zener dielectric breakdown scenario.

18 pages, 17 figures

References in corpus (16)

• Dynamical phase transition in correlated fermionic lattice systems
• Time-Dependent Mean Field Theory for Quench Dynamics in correlated electron systems
• Correlated electron systems periodically driven out of equilibrium: Floquet + DMFT formalism
• Nonequilibrium Dynamical Mean Field Theory: an auxiliary Quantum Master Equation approach
• Dynamical band flipping in fermionic lattice systems: An ac-field-driven change of the interaction from repulsive to attractive
• Electrically-driven phase transition in magnetite nanostructures
• Nonequilibrium Steady State of Photoexcited Correlated Electrons in the Presence of Dissipation
• Resistive switching induced by electronic avalanche breakdown in GaTa${}_4$Se${}_{8-x}$Te${}_x$ narrow gap Mott Insulators
• Steady-state nonequilibrium density of states of driven strongly correlated lattice models in infinite dimensions
• Nonequilibrium quantum dynamics of a charge carrier doped into a Mott insulator
• Surface dead layer for quasiparticles near a Mott transition
• The Mott insulator LaTiO_3 in heterostructures with SrTiO_3 is metallic
• Ultrafast separation of photo-doped carriers in Mott antiferromagnets
• Nonequilibrium transport and optical properties of model metal--Mott-insulator--metal heterostructures
• Electronic charge reconstruction of doped Mott insulators in multilayered nanostructures
• Nanostructure Investigations of Nonlinear Differential Conductance in NdNiO${}_3$ Thin Films

Cited by in corpus (5)

• Electric-field-driven resistive switching in dissipative Hubbard model
• Dynamical Mean Field Theory, Density-Matrix Embedding Theory and Rotationally Invariant Slave Bosons: a Unified Perspective
• Correlated Mott insulators in strong electric fields: Role of phonons in heat dissipation
• Interface and bulk superconductivity in superconducting heterostructures with enhanced critical temperatures
• Resonance Effects in Correlated Multilayer Heterostructures