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Development of high permeability nanocrystalline permalloy by electrodeposition

Journal Article · · Journal of Applied Physics
DOI:https://doi.org/10.1063/1.1855712· OSTI ID:20711682
; ; ; ; ;  [1]
  1. Department of Mechanical Engineering, National University of Singapore, Singapore 119260 (Singapore)

In this study, for developing microsensors for weak magnetic field, methods for developing high permeability nanocrystalline permalloy by electrodeposition and the relationship between the grain size and magnetic properties of the nanocrystalline permalloy are investigated. By dc plating with and without saccharin added and pulse plating with saccharin added, permalloy samples of grain sizes from 52 nm to 11 nm are obtained. The coercivity and magnetoimpedance (MI) ratio of the samples are tested against the grain size variation. Results show that the coercivity decreases rapidly and MI ratio increases greatly with grain size decrease from 52 nm to 11 nm.

OSTI ID:
20711682
Journal Information:
Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 10 Vol. 97; ISSN JAPIAU; ISSN 0021-8979
Country of Publication:
United States
Language:
English

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