Theoretical limit to domain position detection magnetic amplifying magnetooptical system

We developed a model that was used to evaluate the performance of a domain position detection magnetic amplifying magnetooptical system (DPD-MAMMOS). Through the use of the model, we explain the operation of DPD-MAMMOS and demonstrate its advantages. Next, we evaluated the performance of DPD-MAMMOS under the influences of position noise from a theoretical point of view. From this analysis, we estimate that a MAMMOS system will need to attain 30 nm or less of position noise to show a density advantage when used with DPD-MAMMOS.