Formation and Detection of Magnetic CoNiFe Nanowire Network Using Magnetoelastic Sensor

In this study, CoNiFe magnetic nanowires were detected using a magnetoelastic sensor (ME) without any coating. Amorphous ferromagnetic ribbon of Metglass 2826 (Fe₄₀Ni₃₈Mo₄B₁₈) was used as a magnetoelastic sensor. The magnetoelastic ribbons were drop coated with Co₁₂Ni₆₄Fe₂₄ magnetic nanowires in order to study how the mass deposition affects the resonance frequency and to determine the amount of coated nanowire. It was found that the minimum amount of detected nanowire can be as low as 200 ng. It was also shown that the nanowire network was developed on the surface of Metglass 2826 MB magnetoelastic sensor.