  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.
