CONTROL OF THICKNESS DEPENDENCE OF PERPENDICULAR COERCIVITY ON ELECTROLESS Co-Ni-Re-P ALLOY THIN FILMS.

Tetsuya Osaka, I. Koiwa, M. Toda, T. Sakuma, Y. Yamazaki, T. Namikawa

研究成果: Article

1 引用 (Scopus)

抄録

Electroless plated Co alloy films for use as perpendicular magnetic recording media were investigated with respect to the thickness-dependence of their magnetic properties. The read/write characteristics, especially the dependence of the overwrite on the recording density, were found to be very different for Co-Ni-Re-Mn-P films and Co-Ni-Re-P films. The films displayed different thickness dependences of perpendicular coercivity H//c// PERPEND . The thickness dependence of the H//c// PERPEND of Co-Ni-Re-P alloy films was seen to be easily controlled by adjusting the sodium malonate concentration in the plating bath. When films are very thin, the H//c// PERPEND value and degree of c-axis orientation increased with increasing sodium malonate concentration. When the film thickness was increased, these properties were nearly the same for different sodium malonate concentrations.

元の言語English
ページ(範囲)208-214
ページ数7
ジャーナルIEEE translation journal on magnetics in Japan
TJMJ-2
発行部数3
出版物ステータスPublished - 1985 3

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Coercive force
Sodium
Magnetic recording
Plating
Film thickness
Magnetic properties

ASJC Scopus subject areas

  • Engineering(all)

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CONTROL OF THICKNESS DEPENDENCE OF PERPENDICULAR COERCIVITY ON ELECTROLESS Co-Ni-Re-P ALLOY THIN FILMS. / Osaka, Tetsuya; Koiwa, I.; Toda, M.; Sakuma, T.; Yamazaki, Y.; Namikawa, T.

:: IEEE translation journal on magnetics in Japan, 巻 TJMJ-2, 番号 3, 03.1985, p. 208-214.

研究成果: Article

Osaka, T, Koiwa, I, Toda, M, Sakuma, T, Yamazaki, Y & Namikawa, T 1985, 'CONTROL OF THICKNESS DEPENDENCE OF PERPENDICULAR COERCIVITY ON ELECTROLESS Co-Ni-Re-P ALLOY THIN FILMS.', IEEE translation journal on magnetics in Japan, 巻. TJMJ-2, 番号 3, pp. 208-214.
Osaka, Tetsuya ; Koiwa, I. ; Toda, M. ; Sakuma, T. ; Yamazaki, Y. ; Namikawa, T. / CONTROL OF THICKNESS DEPENDENCE OF PERPENDICULAR COERCIVITY ON ELECTROLESS Co-Ni-Re-P ALLOY THIN FILMS. :: IEEE translation journal on magnetics in Japan. 1985 ; 巻 TJMJ-2, 番号 3. pp. 208-214.
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abstract = "Electroless plated Co alloy films for use as perpendicular magnetic recording media were investigated with respect to the thickness-dependence of their magnetic properties. The read/write characteristics, especially the dependence of the overwrite on the recording density, were found to be very different for Co-Ni-Re-Mn-P films and Co-Ni-Re-P films. The films displayed different thickness dependences of perpendicular coercivity H//c// PERPEND . The thickness dependence of the H//c// PERPEND of Co-Ni-Re-P alloy films was seen to be easily controlled by adjusting the sodium malonate concentration in the plating bath. When films are very thin, the H//c// PERPEND value and degree of c-axis orientation increased with increasing sodium malonate concentration. When the film thickness was increased, these properties were nearly the same for different sodium malonate concentrations.",
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