Abstract
Microwave transmission through a 40 μm thick Supermalloy foil (d/δ = 22.5) with RF and static magnetic fields parallel, and parallel to the sample surface, revealed a distorted replica of the usual FMAR transmission signal, but attenuated 600-fold in amplitude. Transmission through a 7.2 μm thick foil of nickel gave a field-independent signal at fields greater than approximately 1 kOe in agreement with the observations reported by Lieu and Alexandrakis. This background signal was found to be consistent in strength with the signal expected for the ordinary electromagnetic wave in a ferromagnetic metal when the RF and static fields are parallel. For both foils an extra transmission signal due to ferromagnetic domain walls was observed near zero static field.
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