SIMPLE QUANTITATIVE-ANALYSIS OF SPATIOTEMPORAL DIAGRAMS FOR DOMAIN-WALL DYNAMICS

A quantitative analysis of spatio-temporal diagrams, which describe th e dynamics of a chosen, spatially extended dynamic system (a domain wa ll in a thin magnetic garnet film) is presented. Two quantifiers chara cterizing such diagrams - a correlation function and power spectrum de nsity function - were calculated using solutions of equations of motio n. It was found that introducing these quantifiers to the analysis of spatio-temporal diagrams enables one to effectively characterize the t ype and the properties of motion of the considered system.