Abstract
Electrodeposition of Co-rich Co-Pt alloys from an alkaline amino-nitrite/citrate/glycinate electrolyte is found to depend strongly on the addition of Na-hypophosphite (Na-Hp) in the electrolyte. The presence of Na-Hp shifts alloy deposition to more negative potentials, decreases the partial current for Co deposition, and lowers the Co content in the films. This results in a smaller and more uniform grain size, a better perpendicular orientation of the resulting hexagonal close packed structure, and in the preferential precipitation of oxygen at the grain boundaries. All these microstructural features lead to a higher coercive force, due to the magnetization switching process becoming hindered by the presence of magnetic grain boundaries and possibly by other defects.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
