Ferromagnetic resonance modes of nanomagnetic logic elements

Nanomagnetic logic (NML) has attracted extensive interest as an alternative for digital circuit design due to its advantages of low power consumption and non-volatility. [1-4] NML builds from nano-scale magnets with separation between neighbouring magnets on the order ~20 nm. [3, 4] Through magnetostatic interactions between neighbouring magnets, NML enables the propagation of information and realization of logic functionality. The dynamic properties of NML element are relevant to understand the maximum operation speed and to investigate, e.g., microwave-assisted programming schemes. Note that the precession dynamics of the NML elements are greatly influenced by the element's shape and also their interaction with neighbouring elements [5-7].