Journal
SENSORS
Volume 15, Issue 3, Pages 5687-5696Publisher
MDPI AG
DOI: 10.3390/s150305687
Keywords
CoNiP nanowires; magnetic properties; electrodeposition; magnetic sensors
Funding
- National Foundation for Science and Technology Development of Vietnam (NAFOSTED) [103.02-2010.01]
Ask authors/readers for more resources
Ordered CoNiP nanowires with the same length of 4 mu m and varying diameters (d = 100 nm-600 nm) were fabricated by electrodeposition of CoNiP onto polycarbonate templates. X-ray diffraction, scanning electron microscopy, and high-resolution transmission electron microscopy confirmed the quality of the fabricated nanowires. Magnetic measurements and theoretical analysis revealed that the magnetization reversal and magnetic anisotropy were significantly influenced by varying of the diameters of the nanowires. There existed a critical wire diameter (d(c) approximate to 276 nm), below which the magnetization reversal occurred via a coherent rotation mode, and above which the magnetization reversal occurred via a curling rotation mode. The easy axis of the magnetization tended to change in direction from parallel to perpendicular with respect to the wire axis as the wire diameter exceeded d(c) approximate to 276 nm. With increasing wire diameter, the coercive field (H-c) and the remanent to saturation magnetization ratio (M-r/M-s) were also found to rapidly decrease in the range d = 100-400 nm and gradually decrease for d > 400 nm.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available