Resonance Effects in Correlated Multilayer Heterostructures
arXiv:1607.05115 · doi:10.1103/PhysRevB.94.245142
Abstract
We study the occurrence of negative differential conductance induced by resonance effects in a model for a multilayer heterostructure. In particular, we consider a system consisting of several correlated and non-correlated monoatomic layers, sandwiched between two metallic leads. The geometry confines electrons in wells within the heterostructures, which are connected to each other and to the leads by tunneling processes. The non-equilibrium situation is produced by applying a bias-voltage to the leads. Our results show that for specific values of the parameters resonance tunneling takes place. We investigate in detail its influence on the current-voltage characteristics. Our results are obtained via non-equilibrium real-space dynamical mean-field theory. As an impurity solver we use the so-called auxiliary master equation approach, which addresses the impurity problem within an auxiliary system consisting of a correlated impurity, a small number of uncorrelated bath sites, and two Markovian environments described by a generalized master equation.
8 pages, 4 figures
References in corpus (24)
- Quantum interference and Klein tunneling in graphene heterojunctions
- Twist-controlled resonant tunnelling in graphene-boron nitride-graphene heterostructures
- Dynamical phase transition in correlated fermionic lattice systems
- Gate-Tunable Resonant Tunneling in Double Bilayer Graphene Heterostructures
- Antiferromagnetic Order of Strongly Interacting Fermions in a Trap: Real-Space Dynamical Mean-Field Analysis
- Nonequilibrium Dynamical Mean Field Theory: an auxiliary Quantum Master Equation approach
- Mott transition of fermionic atoms in a three-dimensional optical trap
- Quenching Bloch oscillations in a strongly correlated material
- Steady-state nonequilibrium density of states of driven strongly correlated lattice models in infinite dimensions
- Néel transition of lattice fermions in a harmonic trap: a real-space DMFT study
- Dynamical Mean Field Study of the Two-Dimensional Disordered Hubbard Model
- Coherent tunneling and negative differential conductivity in graphene-hBN-graphene heterostructure
- Ultrafast separation of photo-doped carriers in Mott antiferromagnets
- Nonequilibrium transport and optical properties of model metal--Mott-insulator--metal heterostructures
- Supersolid state of ultracold fermions in an optical lattice
- Electronic transport and dynamics in correlated heterostructures
- Embedding approach for dynamical mean field theory of strongly correlated heterostructures
- Supersolid state in fermionic optical lattice systems
- Exotic superfluid states of lattice fermions in elongated traps
- Canted Antiferromagnetic Order of Imbalanced Fermi-Fermi mixtures in Optical Lattices by Dynamical Mean-Field Theory
- Surface effects in doping a Mott insulator
- Quantum Monte Carlo simulations of antiferromagnetism in ultracold fermions on optical lattices within real-space dynamical mean-field theory
- Crossover from conventional to inverse indirect magnetic exchange in the depleted Anderson lattice
- PT-Symmetry Breaking and Catastrophes in Dissipationless Resonant Tunneling Heterostructures