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Permeability change of electroplated Ni–Fe permalloy thin films by a leveller added to the electrolyte
Author(s) -
Bang Wonbae,
Lee JaeBang,
Hong Kimin,
Ko YoungDong,
Chung JinSeok,
Lee Heebok
Publication year - 2007
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200777321
Subject(s) - permalloy , coercivity , materials science , electrolyte , electroplating , surface roughness , permeability (electromagnetism) , surface finish , composite material , metallurgy , electrode , chemistry , condensed matter physics , magnetic field , layer (electronics) , magnetization , membrane , quantum mechanics , biochemistry , physics
Abstract We investigated the correlation between the surface roughness and the magnetic properties in electroplated Ni–Fe Permalloy thin films. The Ni–Fe Permalloy thin films electroplated with electrolytes containing a leveling additive showed reduction of coercivity and increase of permeability compared with those prepared with pure inorganic electrolytes. The decrease of the surface roughness resulted in the reduction of coercivity and showed a strong correlation. The improvements in the surface roughness and coercivity caused the initial and incremental permeability increase by 450% and 130%, respectively. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)