Preparation of functionally graded magnetic films by an electrochemical method

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Gradient control of magnetic properties, such as coercivity, Hc, in electrochemically-deposited thin films was attempted in order to establish the methodology for the preparation of functionally graded magnetic thin films. By applying ultra-thin "seed" layers of CoB or CoP, the Hc of electroless CoNiP films growing on them can be controlled toward the film thickness direction. Furthermore, sequential control of the rotating speed of substrates during the deposition can achieve programmed control of the gradient in Hc. These procedures are expected to be useful methods for optimizing graded magnetic properties of the films as recording media which are suitable for the overall system parameters such as local gradient of the recording head field.

Original languageEnglish
Pages (from-to)1025-1030
Number of pages6
JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume62
Issue number11
Publication statusPublished - 1998

Fingerprint

Magnetic films
magnetic films
gradients
preparation
sequential control
Magnetic properties
magnetic properties
Magnetic thin films
recording heads
Film growth
thin films
Coercive force
coercivity
Film thickness
Seed
seeds
film thickness
recording
methodology
Thin films

Keywords

  • Cobalt alloy films
  • Electroless deposition
  • Functionally graded material
  • High coercivity
  • Magnetic recording media

ASJC Scopus subject areas

  • Metals and Alloys

Cite this

@article{30cc3eb1e4994ec9b8092bba7d1137e7,
title = "Preparation of functionally graded magnetic films by an electrochemical method",
abstract = "Gradient control of magnetic properties, such as coercivity, Hc, in electrochemically-deposited thin films was attempted in order to establish the methodology for the preparation of functionally graded magnetic thin films. By applying ultra-thin {"}seed{"} layers of CoB or CoP, the Hc of electroless CoNiP films growing on them can be controlled toward the film thickness direction. Furthermore, sequential control of the rotating speed of substrates during the deposition can achieve programmed control of the gradient in Hc. These procedures are expected to be useful methods for optimizing graded magnetic properties of the films as recording media which are suitable for the overall system parameters such as local gradient of the recording head field.",
keywords = "Cobalt alloy films, Electroless deposition, Functionally graded material, High coercivity, Magnetic recording media",
author = "Takayuki Homma and Yosuke Kita and Tetsuya Osaka",
year = "1998",
language = "English",
volume = "62",
pages = "1025--1030",
journal = "Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals",
issn = "0021-4876",
publisher = "Japan Institute of Metals (JIM)",
number = "11",

}

TY - JOUR

T1 - Preparation of functionally graded magnetic films by an electrochemical method

AU - Homma, Takayuki

AU - Kita, Yosuke

AU - Osaka, Tetsuya

PY - 1998

Y1 - 1998

N2 - Gradient control of magnetic properties, such as coercivity, Hc, in electrochemically-deposited thin films was attempted in order to establish the methodology for the preparation of functionally graded magnetic thin films. By applying ultra-thin "seed" layers of CoB or CoP, the Hc of electroless CoNiP films growing on them can be controlled toward the film thickness direction. Furthermore, sequential control of the rotating speed of substrates during the deposition can achieve programmed control of the gradient in Hc. These procedures are expected to be useful methods for optimizing graded magnetic properties of the films as recording media which are suitable for the overall system parameters such as local gradient of the recording head field.

AB - Gradient control of magnetic properties, such as coercivity, Hc, in electrochemically-deposited thin films was attempted in order to establish the methodology for the preparation of functionally graded magnetic thin films. By applying ultra-thin "seed" layers of CoB or CoP, the Hc of electroless CoNiP films growing on them can be controlled toward the film thickness direction. Furthermore, sequential control of the rotating speed of substrates during the deposition can achieve programmed control of the gradient in Hc. These procedures are expected to be useful methods for optimizing graded magnetic properties of the films as recording media which are suitable for the overall system parameters such as local gradient of the recording head field.

KW - Cobalt alloy films

KW - Electroless deposition

KW - Functionally graded material

KW - High coercivity

KW - Magnetic recording media

UR - http://www.scopus.com/inward/record.url?scp=0032207964&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032207964&partnerID=8YFLogxK

M3 - Article

VL - 62

SP - 1025

EP - 1030

JO - Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals

JF - Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals

SN - 0021-4876

IS - 11

ER -