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All Journal Jurnal Ilmu Fisika
Nurdiyantoro Putra Prasetya
Physics Department, Faculty of Mathematics and Natural Sciences, Universitas Tanjungpura, Pontianak 78124
Astronomy Earth & Planetary Sciences Materials Science & Nanotechnology Physics

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Effects of Layer Repetition and Cu Spacer Thickness on the Magnetoimpedance of Electrodeposited Permalloy Multilayers at 100 kHz and Its Application as a Magnetic Nanoparticle Sensor Artono Dwijo Sutomo; Febriani Wulandaria; Pratiwi Kusumawardhani; Riyatun Riyatun; Nurdiyantoro Putra Prasetya; Ismail Ismail; Budi Purnama
Jurnal Ilmu Fisika Vol 19 No 1 (2027): March 2027 (Forthcoming Issue)
Publisher : Jurusan Fisika FMIPA Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jif.19.1.1-10.2027

Abstract

Optimizing multilayer structures is essential for improving magnetoimpedance (MI) responses in low-frequency magnetic sensing applications. This study investigates the effects of layer repetition number (N) and Cu spacer thickness (x) on the magnetoimpedance (MI) response of [NiFe(600 nm)/Cu(x)/NiFe(600 nm)]N/Cu(200 nm)/[NiFe(600 nm)/Cu(x)/NiFe(600 nm)]N multilayer structures electrodeposited onto Cu printed circuit board substrates with meander patterns. The MI response was systematically evaluated at an operating frequency of 100 kHz to determine the optimal multilayer configuration. The results reveal that both layer repetition and Cu spacer thickness significantly influence the MI ratio. The highest MI ratio of 2.07% was achieved at N = 3 and x = 100 nm, suggesting an optimal balance between magnetic permeability and electrical conductivity. The sensing capability of the optimized multilayer structure was further evaluated using cobalt ferrite nanoparticles. Changes in the MI ratio of 0.32 and 0.64 were observed for nanoparticle masses of 0.1 and 0.3 g, respectively, indicating a mass-dependent sensor response. These findings demonstrate the potential of electrodeposited NiFe/Cu multilayer structures as low-frequency magnetoimpedance sensing platforms for magnetic nanoparticle detection.
Co-Authors Artono Dwijo Sutomo Budi Purnama Febriani Wulandaria Ismail Ismail Pratiwi Kusumawardhani Riyatun Riyatun