V. Korenivski et al., A METHOD TO MEASURE THE COMPLEX PERMEABILITY OF THIN-FILMS AT ULTRA-HIGH FREQUENCIES, IEEE transactions on magnetics, 32(5), 1996, pp. 4905-4907
A swept frequency method for measuring the magnetic permeability of th
in films for frequencies up to 2 GHz with a resolution at 1 GHz of sim
ilar to 0.1 mu m in permeance is described. It is based on the measure
ment of impedance of a strip loop loaded with the sample under test. T
he method employs a commercial impedance or network analyzer, is simpl
e, and suitable for permeability measurements of thin magnetic films w
hich are used in recording heads and microwave components.