High sensitivity permeability measurements of striped films obtained by input impedance

Authors
Yabukami, S Yamaguchi, TUM Arai, KI Takezawa, M
Citation
S. Yabukami et al., High sensitivity permeability measurements of striped films obtained by input impedance, IEEE MAGNET, 37(4), 2001, pp. 2776-2778
Citations number
11
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE TRANSACTIONS ON MAGNETICS
ISSN journal
00189464 → ACNP
Volume
37
Issue
4
Year of publication
2001
Part
1
Pages
2776 - 2778
Database
ISI
SICI code
0018-9464(200107)37:4<2776:HSPMOS>2.0.ZU;2-U
Abstract
We propose a new method to measure the permeability of striped films. The p ermeability can be obtained by the change in the input impedance of the fil m. The sensitivity of these measurements are compared with the figure-eight coil method. The sensitivity of the method is estimated over 100 times gre ater than a conventional figure-eight coil method. The permeability of stri ped CoNbZr films (100 mum wide) can be measured accurately using this perme ameter.