The idea of nanomagnetic Boolean logic was advanced more than two decades ago. It envisaged the use nanomagnets with stable magnetization orientations as primitive binary switch for implementing gates and ultimately combinational/sequential circuits. Enthusiastic proclamations how will eclipse traditional (transistor-based) circuits proliferated applied physics literature. Two later there is no...

Isolated and interactive arrays of magnetic nanostructures as small as 15 nm are fabricated using nanolithography and related technologies, and are characterized using magnetic force microscopy. It has been demonstrated that manipulating the size, aspect ratio, and spacing of these nanostructures can lead to unique control of their magnetic properties. A quantum magnetic disk based on discrete ...

We develop and validate a computational approach to nanomagnets. It is built on the spin wave approximation to a Heisenberg ferromagnet whose parameters can be calculated from a first principles theory (e.g. density functional theory). The method can be used for high throughput analysis of a variety of nanomagnetic materials. We compute the dependence of the magnetization of an iron nanomagnet ...