Semiautomatic permeance tester for thick magnetic films
- 1 July 1975
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 46 (7) , 904-908
- https://doi.org/10.1063/1.1134339
Abstract
An apparatus has been developed for the measurement of the permeance (effective permeability–thickness product) of magnetic films for frequencies 1–100 MHz and permeances up to 20 000 μ with an accuracy of ±100 μ. This is suitable for permalloy films in the 0.5–5 μ thickness range, which are used in thin film recording heads operating in this frequency range.Keywords
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