Sources of negative differential resistance in electric nanotransport

Abstract

A negative differential resistance (NDR) in the nanotransport is often ascribed to electron correlations. We present a simple example which demonstrates that finite electrode bandwidths and energy dependent electrode density of states are responsible for significant NDR effects, which occur even in uncorrelated nanotransport. Therefore, special care is needed in assessing the contribution of electron correlations to the NDR.

References in corpus (5)

• Twofold advance in the theoretical understanding of far-from-equilibrium properties of interacting nanostructures
• New method for studying steady states in quantum impurity problems: The interacting resonant level model
• A gate-defined silicon quantum dot molecule
• On a method to calculate conductance by means of the Wigner function: two critical tests
• Critical analysis of a variational method used to describe the molecular electron transport

Cited by in corpus (2)

• Extending the Newns-Anderson model to allow nanotransport studies through molecules with floppy degrees of freedom
• Time-dependent electron transport through a strongly correlated quantum dot: multiple-probe open boundary conditions approach