Magnetic properties of cluster/thin-film laminated hybrids of FePt and FeCo alloys

Kenji Sumiyama; Shogo Sawa; Dong Liang Peng; Yuichiro Kurokawa; Takeshi Yamabuchi; Takehiko Hihara

doi:10.2320/matertrans.M2012120

Magnetic properties of cluster/thin-film laminated hybrids of FePt and FeCo alloys

Kenji Sumiyama, Shogo Sawa, Dong Liang Peng, Yuichiro Kurokawa, Takeshi Yamabuchi, Takehiko Hihara

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

2 Citations (Scopus)

Abstract

Both FePt cluster/FeCo film and FeCo cluster/FePt film laminated hybrids have been prepared by combination of a plasma-gascluster- deposition and a helicon-plasma sputter-deposition and studied by X-ray diffraction and magnetization measurements. In FePt cluster/ FeCo film laminated hybrids, M _S increases, while H _C and BH _MAX monotonically decrease with the FeCo film thickness. In FeCo cluster/FePt film laminated hybrids, M _S, H _C and BH _MAX increase with the FeCo cluster layer thickness in comparison with those of simple FePt films. However, the remarkable improvement of their hard magnetic properties cannot be attained in these laminated hybrids owing to both the low packing density of FeCo clusters and the difficulty in the diffusion-control of Fe and Co atoms from FeCo to FePt layers.

Original language	English
Pages (from-to)	1563-1570
Number of pages	8
Journal	Materials Transactions
Volume	53
Issue number	9
DOIs	https://doi.org/10.2320/matertrans.M2012120
Publication status	Published - 2012
Externally published	Yes

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.2320/matertrans.M2012120

Cite this

@article{7b83bfa785f24c40b43b17510266f7fa,

title = "Magnetic properties of cluster/thin-film laminated hybrids of FePt and FeCo alloys",

abstract = "Both FePt cluster/FeCo film and FeCo cluster/FePt film laminated hybrids have been prepared by combination of a plasma-gascluster- deposition and a helicon-plasma sputter-deposition and studied by X-ray diffraction and magnetization measurements. In FePt cluster/ FeCo film laminated hybrids, M S increases, while H C and BH MAX monotonically decrease with the FeCo film thickness. In FeCo cluster/FePt film laminated hybrids, M S, H C and BH MAX increase with the FeCo cluster layer thickness in comparison with those of simple FePt films. However, the remarkable improvement of their hard magnetic properties cannot be attained in these laminated hybrids owing to both the low packing density of FeCo clusters and the difficulty in the diffusion-control of Fe and Co atoms from FeCo to FePt layers.",

author = "Kenji Sumiyama and Shogo Sawa and Peng, {Dong Liang} and Yuichiro Kurokawa and Takeshi Yamabuchi and Takehiko Hihara",

year = "2012",

doi = "10.2320/matertrans.M2012120",

language = "English",

volume = "53",

pages = "1563--1570",

journal = "Materials Transactions",

issn = "1345-9678",

publisher = "The Japan Institute of Metals and Materials",

number = "9",

}

TY - JOUR

T1 - Magnetic properties of cluster/thin-film laminated hybrids of FePt and FeCo alloys

AU - Sumiyama, Kenji

AU - Sawa, Shogo

AU - Peng, Dong Liang

AU - Kurokawa, Yuichiro

AU - Yamabuchi, Takeshi

AU - Hihara, Takehiko

PY - 2012

Y1 - 2012

N2 - Both FePt cluster/FeCo film and FeCo cluster/FePt film laminated hybrids have been prepared by combination of a plasma-gascluster- deposition and a helicon-plasma sputter-deposition and studied by X-ray diffraction and magnetization measurements. In FePt cluster/ FeCo film laminated hybrids, M S increases, while H C and BH MAX monotonically decrease with the FeCo film thickness. In FeCo cluster/FePt film laminated hybrids, M S, H C and BH MAX increase with the FeCo cluster layer thickness in comparison with those of simple FePt films. However, the remarkable improvement of their hard magnetic properties cannot be attained in these laminated hybrids owing to both the low packing density of FeCo clusters and the difficulty in the diffusion-control of Fe and Co atoms from FeCo to FePt layers.

AB - Both FePt cluster/FeCo film and FeCo cluster/FePt film laminated hybrids have been prepared by combination of a plasma-gascluster- deposition and a helicon-plasma sputter-deposition and studied by X-ray diffraction and magnetization measurements. In FePt cluster/ FeCo film laminated hybrids, M S increases, while H C and BH MAX monotonically decrease with the FeCo film thickness. In FeCo cluster/FePt film laminated hybrids, M S, H C and BH MAX increase with the FeCo cluster layer thickness in comparison with those of simple FePt films. However, the remarkable improvement of their hard magnetic properties cannot be attained in these laminated hybrids owing to both the low packing density of FeCo clusters and the difficulty in the diffusion-control of Fe and Co atoms from FeCo to FePt layers.

UR - http://www.scopus.com/inward/record.url?scp=84866918556&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84866918556&partnerID=8YFLogxK

U2 - 10.2320/matertrans.M2012120

DO - 10.2320/matertrans.M2012120

M3 - Article

AN - SCOPUS:84866918556

SN - 1345-9678

VL - 53

SP - 1563

EP - 1570

JO - Materials Transactions

JF - Materials Transactions

IS - 9

ER -

Magnetic properties of cluster/thin-film laminated hybrids of FePt and FeCo alloys

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this