About Fingerprints of Chua's Memristors

Abstract

In this paper, we present an analysis of some selected fingerprints of Chua's memristors. First, the memristor is presented not as a concrete nanodevice but, more generally, as a manifestation of permanent natural principle. Next, an overview of the current classification of memristors is given in the light of various mechanisms of the memristance adjustment by internal state and by terminal variables. It is shown that only the ideal and ideal generic memristors have their stamps in Chua's table of fundamental elements and in the equivalent storeyed structure, both of them being based on the idea of predictive modeling. A brief overview on the memristor fingerprints is presented. The homothety fingerprint is discussed in detail, and all existing elements complying with this fingerprint are identified. Finally, it is argued that the most natural fingerprint of the original memristors introduced by L. Chua in 1971 should be sought in the charge-flux coordinates of their constitutive relations.