Plasma-Like Negative Capacitance in Nano-Colloids
arXiv:cond-mat/0612160 · doi:10.1063/1.2431782
Abstract
A negative capacitance has been observed in a nano-colloid between 0.1 and 10^-5 Hz. The response is linear over a broad range of conditions. The low-omega dispersions of both the resistance and capacitance are consistent with the free-carrier plasma model, while the transient behavior demonstrates an unusual energy storage mechanism. A collective excitation, therefore, is suggested.
3 pages, 3 figures