Влияние геометрических параметров на асимметрический пиннинг доменных границ в плёнках с одноосной анизотропией

Abstract

This work is devoted to the properties of asymmetric vortex domain wall in uniaxial Permalloy thin film with areas of magnetic inhomogeneity (“defect”). We carried out micromagnetic simulations to obtain asymmetric hysteresis loops in extrinsic uniform magnetic field, parallel to easy axis and look after loop dependence on geometrical parameters of defects: their size and distance between two defects. It has been shown that there are critical values of these parameters, corresponding to phase transitions.