ABSTRACT
Nanomagnetic logic (NML) is an emerging technology using field-coupled nanomagnets that combine logic and memory functionality in a single device. This chapter presents an experiment-based compact model for NML with perpendicular magnetic anisotropy (PMA). Perpendicular NML uses alternating, homogeneous magnetic fields in an easy-axis direction for clocking, which can be generated by either external or integrated coils. In contrast to NML with in-plane nanomagnets made of permalloy, the switching behavior of the out-of-plane nano-magnets is defined by the interface and crystalline anisotropy allowing for a user-defined dot geometry. The basic building blocks for NML with PMA, such as a majority gate, an inverter chain, or a fanout structure, have already been demonstrated. For the correct operation of the perpendicular NML circuits, the coupling fields of the nanomagnets have to overcome the effective switching field distribution to keep up the clocking window.
