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 language | English |
|---|---|
| Pages (from-to) | 1025-1030 |
| Number of pages | 6 |
| Journal | Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals |
| Volume | 62 |
| Issue number | 11 |
| Publication status | Published - 1998 |
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Keywords
- Cobalt alloy films
- Electroless deposition
- Functionally graded material
- High coercivity
- Magnetic recording media
ASJC Scopus subject areas
- Metals and Alloys
Cite this
Preparation of functionally graded magnetic films by an electrochemical method. / Homma, Takayuki; Kita, Yosuke; Osaka, Tetsuya.
In: Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals, Vol. 62, No. 11, 1998, p. 1025-1030.Research output: Contribution to journal › Article
}
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 -