DOMAIN PROCESSES AND HIGH-FREQUENCY PERMEABILITY OF LAMINATED CO91NB6ZR3 SIO2 NARROW STRIPS/

High resolution and real time domain images and magnetisation reversal processes were observed by Lorentz Microscopy with in-situ applied ma gnetic fields for patterned narrow strips of single layer and double l ayer CoNbZr films. Results were compared with the initial high frequen cy permeability measurement of the narrow strips. It was revealed that the domain structures and magnetisation reversal processes were disti nctively different at the edge and at the central part of wide strips. The size of the edge domains was typically 3 similar to 4 mu m-wide. Double walls were observed in dual-layer strips indicating some. magne tostatic coupling between sublayers. The easy-axis state was sustained by double layer lamination for 3 mu m-wide strips. Distinct magnetisa tion reversal processes and domain structures were observed for single layer and double layer narrow strips.