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Electrodeposition and magnetic properties of Co x Dy1−x nanotube arrays
- Source :
- Applied Physics Express. 15:095001
- Publication Year :
- 2022
- Publisher :
- IOP Publishing, 2022.
-
Abstract
- Well-ordered Co x Dy1−x nanotubes are electrodeposited into self-made anodic aluminum oxidation templates under different potentials. The composition of Co x Dy1−x alloy nanotubes can be tuned by deposition potentials. The deposited Co x Dy1−x alloy nanotubes are amorphous, however, there appears a diffraction peak corresponding to Co7Dy2 in the sample annealed at 600 °C. The easy magnetization direction is always along the longitudinal axis of arrays for all samples. Dysprosium alloying significantly increases the coercivity of Co x Dy1−x nanotubes in comparison with Co nanotubes. By using the hybrid Monte Carlo micromagnetic method, the exchange stiffness constant of Co7Dy2 nanotubes can be conveniently estimated to be 8.0 × 10−11 J m−1.
- Subjects :
- General Engineering
General Physics and Astronomy
Subjects
Details
- ISSN :
- 18820786 and 18820778
- Volume :
- 15
- Database :
- OpenAIRE
- Journal :
- Applied Physics Express
- Accession number :
- edsair.doi...........409532e5d8aed787c1b8b5467007638a