Note on Magnetic Properties of Evaporated Films of Nickel

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Abstract
Films of nickel produced by evaporation on aluminum foil were tested in fields up to 167 gauss. The coercive force reached a value approximately three times that for hard drawn wire and retentivity was observed as high as 65 percent. Coercive force decreased with decreasing deposit temperature and increasing thickness. No critical thickness was observed. Films were of uniform thickness and were uninfluenced in their properties by distortion after deposit.