Core losses of sputtered supermalloy multilayered core over 1 MHz

This paper describes about a preparation of Supermalloy multilayered cores and core losses. The Supermalloy multilayered core was prepared by facing type targets in an R.F. sputtering system. The core consisted of alternate Supermalloy and SiO2layers. The hysteresis losses and the dependence of core losses on frequency were measured. The effect of multilayered structure on core losses is discussed.