Mesoscopic Capacitance Oscillations

Abstract

We examine oscillations as a function of Fermi energy in the capacitance of a mesoscopic cavity connected via a single quantum channel to a metallic contact and capacitively coupled to a back gate. The oscillations depend on the distribution of single levels in the cavity, the interaction strength and the transmission probability through the quantum channel. We use a Hartree-Fock approach to exclude self-interaction. The sample specific capacitance oscillations are in marked contrast to the charge relaxation resistance, which together with the capacitance defines the RC-time, and which for spin polarized electrons is quantized at half a resistance quantum. Both the capacitance oscillations and the quantized charge relaxation resistance are seen in a strikingly clear manner in a recent experiment.

9 pages, 2 figures

References in corpus (1)

• Mesoscopic Charge Relaxation

Cited by in corpus (5)

• Quantum to Classical Transition of the Charge Relaxation Resistance of a Mesoscopic Capacitor
• Delayed currents and interaction effects in mesoscopic capacitors
• Cross-correlation of two interacting conductors
• Role of coherence in resistance quantization
• Charge transport through weakly open one dimensional quantum wires