EFFECT OF FILM THICKNESS ON THE MAGNETIC PROPERTIES OF ELECTROLESS COBALT ALLOY PLATING FILMS FOR PERPENDICULAR MAGNETIC RECORDING MEDIA.

Ichiro Koiwa, Masanori Toda, Tetsuya Osaka

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Co-Ni-Re-Mn-P and Co-Ni-Re-P alloy films for perpendicular magnetic recording media were prepared by an electroless plating method, and the effect of film thickness on magnetic properties and recording characteristics was investigated. This effect was found to differ greatly for the two alloy systems. In the case of Co-Ni-Re-Mn-P alloy films, the perpendicular anisotropy magnetic field (H//k) and the perpendicular coercivity H//c( PERPEND ) decreased with decreasing film thickness, and suitable magnetic properties could not be maintained for films thinner than 0. 2 mu m. However, in the case of Co-Ni-Re-P alloy films, the values of H//k, H//c( PERPEND ), and perpendicular anisotropy energy (K//u) increased with decreasing film thickness, and magentic properties suitable for perpendicular recording were obtained in the thinner films.

Original languageEnglish
Pages (from-to)597-600
Number of pages4
JournalJournal of the Electrochemical Society
Volume133
Issue number3
Publication statusPublished - 1986 Mar

Fingerprint

cobalt alloys
Cobalt alloys
Magnetic recording
magnetic recording
plating
Plating
Film thickness
Magnetic properties
film thickness
magnetic properties
Anisotropy
Thin films
anisotropy
Electroless plating
thin films
Coercive force
coercivity
recording
Magnetic fields
magnetic fields

ASJC Scopus subject areas

  • Electrochemistry
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

EFFECT OF FILM THICKNESS ON THE MAGNETIC PROPERTIES OF ELECTROLESS COBALT ALLOY PLATING FILMS FOR PERPENDICULAR MAGNETIC RECORDING MEDIA. / Koiwa, Ichiro; Toda, Masanori; Osaka, Tetsuya.

In: Journal of the Electrochemical Society, Vol. 133, No. 3, 03.1986, p. 597-600.

Research output: Contribution to journalArticle

@article{9c96a72fc6144869a9f013a46215731c,
title = "EFFECT OF FILM THICKNESS ON THE MAGNETIC PROPERTIES OF ELECTROLESS COBALT ALLOY PLATING FILMS FOR PERPENDICULAR MAGNETIC RECORDING MEDIA.",
abstract = "Co-Ni-Re-Mn-P and Co-Ni-Re-P alloy films for perpendicular magnetic recording media were prepared by an electroless plating method, and the effect of film thickness on magnetic properties and recording characteristics was investigated. This effect was found to differ greatly for the two alloy systems. In the case of Co-Ni-Re-Mn-P alloy films, the perpendicular anisotropy magnetic field (H//k) and the perpendicular coercivity H//c( PERPEND ) decreased with decreasing film thickness, and suitable magnetic properties could not be maintained for films thinner than 0. 2 mu m. However, in the case of Co-Ni-Re-P alloy films, the values of H//k, H//c( PERPEND ), and perpendicular anisotropy energy (K//u) increased with decreasing film thickness, and magentic properties suitable for perpendicular recording were obtained in the thinner films.",
author = "Ichiro Koiwa and Masanori Toda and Tetsuya Osaka",
year = "1986",
month = "3",
language = "English",
volume = "133",
pages = "597--600",
journal = "Journal of the Electrochemical Society",
issn = "0013-4651",
publisher = "Electrochemical Society, Inc.",
number = "3",

}

TY - JOUR

T1 - EFFECT OF FILM THICKNESS ON THE MAGNETIC PROPERTIES OF ELECTROLESS COBALT ALLOY PLATING FILMS FOR PERPENDICULAR MAGNETIC RECORDING MEDIA.

AU - Koiwa, Ichiro

AU - Toda, Masanori

AU - Osaka, Tetsuya

PY - 1986/3

Y1 - 1986/3

N2 - Co-Ni-Re-Mn-P and Co-Ni-Re-P alloy films for perpendicular magnetic recording media were prepared by an electroless plating method, and the effect of film thickness on magnetic properties and recording characteristics was investigated. This effect was found to differ greatly for the two alloy systems. In the case of Co-Ni-Re-Mn-P alloy films, the perpendicular anisotropy magnetic field (H//k) and the perpendicular coercivity H//c( PERPEND ) decreased with decreasing film thickness, and suitable magnetic properties could not be maintained for films thinner than 0. 2 mu m. However, in the case of Co-Ni-Re-P alloy films, the values of H//k, H//c( PERPEND ), and perpendicular anisotropy energy (K//u) increased with decreasing film thickness, and magentic properties suitable for perpendicular recording were obtained in the thinner films.

AB - Co-Ni-Re-Mn-P and Co-Ni-Re-P alloy films for perpendicular magnetic recording media were prepared by an electroless plating method, and the effect of film thickness on magnetic properties and recording characteristics was investigated. This effect was found to differ greatly for the two alloy systems. In the case of Co-Ni-Re-Mn-P alloy films, the perpendicular anisotropy magnetic field (H//k) and the perpendicular coercivity H//c( PERPEND ) decreased with decreasing film thickness, and suitable magnetic properties could not be maintained for films thinner than 0. 2 mu m. However, in the case of Co-Ni-Re-P alloy films, the values of H//k, H//c( PERPEND ), and perpendicular anisotropy energy (K//u) increased with decreasing film thickness, and magentic properties suitable for perpendicular recording were obtained in the thinner films.

UR - http://www.scopus.com/inward/record.url?scp=0022680890&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0022680890&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0022680890

VL - 133

SP - 597

EP - 600

JO - Journal of the Electrochemical Society

JF - Journal of the Electrochemical Society

SN - 0013-4651

IS - 3

ER -