Reduction effect of coercivity of electroplated Fe-Pt film magnets by chloride ion in plating baths

Autor: Takeshi Yanai, Daiki Fukushima, Ryuta Narabayashi, Naoki Ogushi, Yuito Yamaguchi, Akihiro Yamashita, Masaki Nakano, Hirotoshi Fukunaga
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: AIP Advances, Vol 14, Iss 2, Pp 025020-025020-4 (2024)
Druh dokumentu: article
ISSN: 2158-3226
DOI: 10.1063/9.0000776
Popis: We recently reported the electroplating of Fe-Pt thick films using plating baths with varying concentrations of NaCl, suggesting the potential for coercivity enhancement by Na ions. In the present study, our focus shifted to not Na ions but Cl ones, and we investigated the effect of the Cl ions on the crystal structures and magnetic properties of electroplated Fe-Pt films. With the increasing concentration of Cl ions, the coercivity of the films decreased. Furthermore, XRD analysis suggested that the Cl ions in the plating baths prevent the L10 ordering of the Fe-Pt crystalline phase, leading us to conclude that a Cl-free bath is favorable for preparing Fe-Pt thick-film magnets with high coercivity.
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