Glassy alloy composites for bit-patterned-media

Nobuyuki Nishiyama; K. Takenaka; N. Saidoh; M. Futamoto; Yasunori Saotome; Akihisa Inoue

doi:10.1016/j.jallcom.2010.12.020

Glassy alloy composites for bit-patterned-media

Nobuyuki Nishiyama, K. Takenaka, N. Saidoh, M. Futamoto, Yasunori Saotome, Akihisa Inoue

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

With the aim of developing a novel perpendicular bit-patterned-media, combined process of thermal imprinting of glassy alloy thin film and embedding Co/Pd multilayer was developed. Nano hole array with a hole diameter of 30 nm was successfully formed onto Pd-based glassy alloy thin film by thermal imprinting. Co/Pd multilayer was overlaid on a textured Pd-based glassy alloy thin film. After finishing by sputter etching, prototype bit-patterned-media was prepared. Switching behavior examined under magnetic field of ±10 kOe reveals that the isolated magnetic dots began to switch at 10 kOe. These results suggest that the prototype composite has a strong possibility for the realization of next generation bit-patterned-media with high data density.

Original language	English
Pages (from-to)	S145-S147
Journal	Journal of Alloys and Compounds
Volume	509
Issue number	SUPPL. 1
DOIs	https://doi.org/10.1016/j.jallcom.2010.12.020
Publication status	Published - 2011 Jul 14

Keywords

Glassy alloy composites
Magnetic recording media
Magnetic switching
Thermal nano-imprinting
Thin film

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2010.12.020

Cite this

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title = "Glassy alloy composites for bit-patterned-media",

abstract = "With the aim of developing a novel perpendicular bit-patterned-media, combined process of thermal imprinting of glassy alloy thin film and embedding Co/Pd multilayer was developed. Nano hole array with a hole diameter of 30 nm was successfully formed onto Pd-based glassy alloy thin film by thermal imprinting. Co/Pd multilayer was overlaid on a textured Pd-based glassy alloy thin film. After finishing by sputter etching, prototype bit-patterned-media was prepared. Switching behavior examined under magnetic field of ±10 kOe reveals that the isolated magnetic dots began to switch at 10 kOe. These results suggest that the prototype composite has a strong possibility for the realization of next generation bit-patterned-media with high data density.",

keywords = "Glassy alloy composites, Magnetic recording media, Magnetic switching, Thermal nano-imprinting, Thin film",

author = "Nobuyuki Nishiyama and K. Takenaka and N. Saidoh and M. Futamoto and Yasunori Saotome and Akihisa Inoue",

note = "Funding Information: The authors are grateful to Prof. H. Fujimori and Prof. A. Makino at Tohoku University for stimulating discussion. Funding by “New Energy and Industrial technology Development Organization (NEDO)” under “Technological Development of Innovative Components Based on Enhanced Functionality Metallic Glass” project is also gratefully acknowledged.",

year = "2011",

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doi = "10.1016/j.jallcom.2010.12.020",

language = "English",

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journal = "Journal of Alloys and Compounds",

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AU - Nishiyama, Nobuyuki

AU - Takenaka, K.

AU - Saidoh, N.

AU - Futamoto, M.

AU - Saotome, Yasunori

AU - Inoue, Akihisa

N1 - Funding Information: The authors are grateful to Prof. H. Fujimori and Prof. A. Makino at Tohoku University for stimulating discussion. Funding by “New Energy and Industrial technology Development Organization (NEDO)” under “Technological Development of Innovative Components Based on Enhanced Functionality Metallic Glass” project is also gratefully acknowledged.

PY - 2011/7/14

Y1 - 2011/7/14

N2 - With the aim of developing a novel perpendicular bit-patterned-media, combined process of thermal imprinting of glassy alloy thin film and embedding Co/Pd multilayer was developed. Nano hole array with a hole diameter of 30 nm was successfully formed onto Pd-based glassy alloy thin film by thermal imprinting. Co/Pd multilayer was overlaid on a textured Pd-based glassy alloy thin film. After finishing by sputter etching, prototype bit-patterned-media was prepared. Switching behavior examined under magnetic field of ±10 kOe reveals that the isolated magnetic dots began to switch at 10 kOe. These results suggest that the prototype composite has a strong possibility for the realization of next generation bit-patterned-media with high data density.

AB - With the aim of developing a novel perpendicular bit-patterned-media, combined process of thermal imprinting of glassy alloy thin film and embedding Co/Pd multilayer was developed. Nano hole array with a hole diameter of 30 nm was successfully formed onto Pd-based glassy alloy thin film by thermal imprinting. Co/Pd multilayer was overlaid on a textured Pd-based glassy alloy thin film. After finishing by sputter etching, prototype bit-patterned-media was prepared. Switching behavior examined under magnetic field of ±10 kOe reveals that the isolated magnetic dots began to switch at 10 kOe. These results suggest that the prototype composite has a strong possibility for the realization of next generation bit-patterned-media with high data density.

KW - Glassy alloy composites

KW - Magnetic recording media

KW - Magnetic switching

KW - Thermal nano-imprinting

KW - Thin film

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Glassy alloy composites for bit-patterned-media

Abstract

Keywords

ASJC Scopus subject areas

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