1. Multicracking and Magnetic Behavior of Ni80Fe20 Nanowires Deposited onto a Polymer Substrate
- Author
-
Pierpaolo Lupo, A. Garcia-Sanchez, Fatih Zighem, Skander Merabtine, Damien Faurie, and A. O. Adeyeye
- Subjects
010302 applied physics ,Materials science ,Mechanical Engineering ,Nanowire ,Bioengineering ,Magnetostriction ,02 engineering and technology ,General Chemistry ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,01 natural sciences ,Ferromagnetic resonance ,Kapton ,Condensed Matter::Materials Science ,Magnetic anisotropy ,0103 physical sciences ,General Materials Science ,Thin film ,Composite material ,0210 nano-technology ,Anisotropy ,Saturation (magnetic) - Abstract
This work presents the effect of large strains (up to 20%) on the behavior of magnetic nanowires (Ni80Fe20) deposited on a Kapton substrate. The multicracking phenomenon was followed by in situ tensile tests combined with atomic force microscopy measurements. These measurements show, on the one hand, a delay in crack initiation relative to the nonpatterned thin film and, on the other hand, a saturation of the length of the nanowire fragments. The latter makes it possible to retain the initial magnetic anisotropy measured after deformation by ferromagnetic resonance. In addition, the ferromagnetic resonance line profile (intensity, width) is minimally affected by the numerous cracks, which is explained by the small variation in magnetic anistropy and the low magnetostriction coefficient of Ni80Fe20.
- Published
- 2018
- Full Text
- View/download PDF