Threshold fields for domain tip propagation

A model is presented for channeled domain tip propagation, which is used for the construction of magnetic thin film memory and logic devices. The technique, called DTPL, utilizes the dependence of the direction of tip propagation upon the magnitude and direction of the applied field and the magnetostatic interaction between channeled domain tips brought into proximity of one another. In a DTPL device domain tip propagation channels are, in general, oriented at various angles with respect to the easy axis. With the model for DTPL, the threshold for tip propagation can be calculated as a function of channel width and orientation and the direction of the applied drive field.