한국표면공학회지 (24권2호 96-102)
Magnetic Properties of Electrodeposited Co-Ni-P Alloys
Co-Ni-P합금도금층의 자기적 성질에 관한 연구
백민선;김영근;강탁;손헌준;
Paik, M. S.;Kim, Y. K.;Kang, T.;Sohn, H. J.;
삼성전관 종합연구소;서울대학교 공과대학 금속공학과;서울대학교 공과대학 자원공학과;
Research & Development Center, Samsung Electron Cevices;Department of Metallurgical Eng., Seoul National Univ.;Department of Mineral & Petroleum Eng., Seoul National Univ.;
Co-Ni-P alloys were electrodeposited from NH4Cl-sulfate-hypophosphite baths under various plating conditions. Their effective anisotropic magnetic field which is one of the important properties for magnetic recording materials were investigated as the function of alloy compositions and c-axis orientation. The preferred orientation and the contents of Ni and P depend on the pH of solutions and also on the current density. It was found that the alloy films deposited from the solutions of pH4 at high current density had c-axis orientation parallel to the growth direction and the effective anisotropic fields sufficient for perpendicular magnetic recording application.
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