H. Thomas
Physical Review
The current response to oscillating external electric fields induced along the probes of a phase coherent conductor is calculated. For non-interacting carriers we find an expression of the equilibrium ac-conductance in terms of the scattering matrix of the conductor. Our derivation invokes the Kramers-Kronig relations for the scattering matrices. The low-frequency departure of the conductance away from the dc-conductance is Drude like but with the role of the scattering time played by weighted averages of the time taken by carriers for traversal, reflection or dwelling in the conductor.
H. Thomas
Physical Review
H. Rohrer, H. Thomas
Journal of Applied Physics
S. Washburn, K. Ismail, et al.
Quantum Effect Physics, Electronics and Applications 1992
R. Landauer, M. Buttiker
Physical Review B