Development of high permeability nanocrystalline permalloy by electrodeposition

Journal Article · Sun May 15 00:00:00 EDT 2005 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.1855712· OSTI ID:20711682

Seet, H; Li, X P; Zhao, Z J; Kong, Y K; Zheng, H M; Ng, W C ^[1]

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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, Vol. 97, Issue 10; Conference: 49. annual conference on magnetism and magnetic materials, Jacksonville, FL (United States), 7-11 Nov 2004; Other Information: DOI: 10.1063/1.1855712; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COERCIVE FORCE
CRYSTALS
ELECTROPLATING
FERROMAGNETIC MATERIALS
GRAIN SIZE
HYSTERESIS
MAGNETIC FIELDS
MAGNETIC SUSCEPTIBILITY
MAGNETORESISTANCE
NANOSTRUCTURES
PERMALLOY
PERMEABILITY
SACCHARIN