Quasiparticle excitations in steady state transport across a correlated layer

Abstract

In this work we investigate the spectral and transport properties of a single correlated layer attached to two metallic leads, with particular focus on the low-energy physics. A steady state current is driven across the layer by applying a bias voltage between the leads. Extending previous work we introduce a nonzero temperature in the leads, which enables us to study the influence of quasiparticle excitations on the transport characteristics in detail. Even though the system is clearly three dimensional we obtain current-voltage curves that closely resemble those of single quantum dots. Furthermore, a splitting of the quasiparticle excitation with bias voltage is observed in the spectral function.

7 pages, 4 figures

Cited by in corpus (7)

• Optimized auxiliary representation of a non-Markovian environment by a Lindblad equation
• Thermoelectric response of a correlated impurity in the nonequilibrium Kondo regime
• Nonequilibrium Kondo effect in a magnetic field: Auxiliary master equation approach
• Charge redistribution in correlated heterostuctures within nonequilibrium real-space dynamical mean-field theory
• Auxiliary master equation approach within stochastic wave functions: Application to the Interacting Resonant Level Model
• Resonance Effects in Correlated Multilayer Heterostructures
• Thermoelectric properties of a strongly correlated layer