Predictive Models of Nanodevices

Chua's concept of nonlinear higher-order elements is generalized with the aim of extending the procedures of predictive modeling of complex electrical systems to various nonelectrical domains. Special attention is paid to nanodevices with ambiguous hysteretic characteristics and their predictive modeling via unambiguous constitutive relations. It is shown on an example of spin-torque nano-oscillator how its Newton-like equation of motion can be used for constructing the predictive model of this device, and how this model can be useful for identifying the mechanisms of the oscillator dynamics.