The permeability of amorphous glass-covered Co-based microwires with variou
s anisotropic field has been investigated up to 18 GHz. The measured permea
bility parallel to the direction of the wires is estimated by the Bloch-Blo
embergen equation. It is shown that the gyromagnetic resonance is affected
by the inhomogeneity of the anisotropic held inside the microwires. (C) 199
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