2012/02/08 by H. Ness, L. K. Dash · 1 citation
Engineering · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Advancements in Semiconductor Devices and Circuit Design #Charge (physics) #Condensed matter physics #Conductance #Non-equilibrium thermodynamics #Physics #Quantum #Quantum and electron transport phenomena #Quantum mechanics #Scattering #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevlett.108.126401
published as Physical Review Letters 108, 126401 (2012) · accepted for publication in Phys. Rev. Lett
arxiv created 2012/02/08 · openalex publication_date 2012/03/20 · arxiv updated 2012/10/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We calculate the nonequilibrium charge transport properties of nanoscale junctions in the steady state and extend the concept of charge susceptibility to the nonequilibrium conditions. We show that the nonequilibrium charge susceptibility is related to the nonlinear dynamical conductance. In spectroscopic terms, both contain the same features versus applied bias when charge fluctuation occurs in the corresponding electronic resonances. However, we show that, while the conductance exhibits features at biases corresponding to inelastic scattering with no charge fluctuations, the nonequilibrium charge susceptibility does not. We suggest that measuring both the nonequilibrium conductance and charge susceptibility in the same experiment will permit us to differentiate between different scattering processes in quantum transport.