The performance and the flux patterns of a special shape multi-aperture device

摘要

This paper describes a special-shaped multi-aperture device which can perform the operation of a circuit element equivalent to a two-input AND gate. One interesting feature of this device is that it may be interrogated non-destructively. Although this shape basically performs the AND function, it is possible for it to perform a wider range of logical operations, such as OR-AND, negation, exclusive-OR, etc. Furthermore, by combining different switching paths within the component, a single device may perform the operation of a half-adder. This multi-aperture device may be used in all-magnetic logical systems, where the connection between this device and others can be of wire only. However, this feature applies only when it functions as an AND gate. Various flux switching paths within the device are described and it is demonstrated that the guidance of the switching flux into particular paths leads to a variety of logical operations.