METHOD OF MEASURING VELOCITY OF DOMAIN WALLS IN MAGNETIC UNIAXIAL DOMAIN-CONTAINING FILM

摘要

This invention relates to computer engineering and optoelectronics, and may be used in the measurement of dynamic parameters magnetically films employed in memory devices for cylindrical magnetic domains, magneto actuated transparencies, modulators, switches x, deflectors, etc. The purpose of the invention increase the measurement accuracy and simplification of the method. In the method of measuring the domain wall velocity in the pre- menosoderzhaschey film formed punctiform or linear inhomogeneity with a locally reduced field zarodysheob- mations. This is achieved by locally reducing the thickness of the film, the local ion implantation through effects on the film by a focused pulsed laser beam with a wavelength in the absorption of the film, by passing a current pulse through conductive water tokopro- resistive element, finding is in contact with the film, or by pulsed acoustic exposing the film. Domain-film is magnetized to saturation offset field specified in the opposite direction of pulse magnetic field, the magnetization-reversing film. Record the time dependence of the movement of the domain wall with reverse domain magnetization value zarozhdayuschegos on the local inhomogeneities and the slope of the linear portion of this dependence is judged on the domain wall velocity. 4 ZP f-ly. C5 00 00 fe VJ w ate CJ