Coercivity control of FePt nanoparticles by interfacial disorder

Y. K. Takahashi; S. Okamoto; O. Kitakami; Y. Shimada; K. Hono

doi:10.2320/matertrans.47.38

Coercivity control of FePt nanoparticles by interfacial disorder

Y. K. Takahashi^*, S. Okamoto, O. Kitakami, Y. Shimada, K. Hono

^*Corresponding author for this work

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

1 Citation (Scopus)

Abstract

Thin disordered layer can be formed by sputter-deposition of alumina on fully ordered L1₀ FePt nanoparticle assembly, due to plasma damage. The thickness of the disordered layer can be tuned by the sputtering power and deposition time of the alumina target. This partial disordering causes substantial decrease in the coercivity, which may be effective to adjust very high switching field of L1₀ FePt to practical magnetic recording systems.

Original language	English
Pages (from-to)	38-42
Number of pages	5
Journal	Materials Transactions
Volume	47
Issue number	1
DOIs	https://doi.org/10.2320/matertrans.47.38
Publication status	Published - 2006 Jan
Externally published	Yes

Keywords

Coercivity
FePt
Interfacially disorder
Nanoparticle

ASJC Scopus subject areas

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

Access to Document

10.2320/matertrans.47.38

Cite this

@article{0cf9d472555b4beebdd309f2a86ba685,

title = "Coercivity control of FePt nanoparticles by interfacial disorder",

abstract = "Thin disordered layer can be formed by sputter-deposition of alumina on fully ordered L10 FePt nanoparticle assembly, due to plasma damage. The thickness of the disordered layer can be tuned by the sputtering power and deposition time of the alumina target. This partial disordering causes substantial decrease in the coercivity, which may be effective to adjust very high switching field of L10 FePt to practical magnetic recording systems.",

keywords = "Coercivity, FePt, Interfacially disorder, Nanoparticle",

author = "Takahashi, {Y. K.} and S. Okamoto and O. Kitakami and Y. Shimada and K. Hono",

year = "2006",

month = jan,

doi = "10.2320/matertrans.47.38",

language = "English",

volume = "47",

pages = "38--42",

journal = "Materials Transactions",

issn = "1345-9678",

publisher = "Japan Institute of Metals (JIM)",

number = "1",

}

TY - JOUR

T1 - Coercivity control of FePt nanoparticles by interfacial disorder

AU - Takahashi, Y. K.

AU - Okamoto, S.

AU - Kitakami, O.

AU - Shimada, Y.

AU - Hono, K.

PY - 2006/1

Y1 - 2006/1

N2 - Thin disordered layer can be formed by sputter-deposition of alumina on fully ordered L10 FePt nanoparticle assembly, due to plasma damage. The thickness of the disordered layer can be tuned by the sputtering power and deposition time of the alumina target. This partial disordering causes substantial decrease in the coercivity, which may be effective to adjust very high switching field of L10 FePt to practical magnetic recording systems.

AB - Thin disordered layer can be formed by sputter-deposition of alumina on fully ordered L10 FePt nanoparticle assembly, due to plasma damage. The thickness of the disordered layer can be tuned by the sputtering power and deposition time of the alumina target. This partial disordering causes substantial decrease in the coercivity, which may be effective to adjust very high switching field of L10 FePt to practical magnetic recording systems.

KW - Coercivity

KW - FePt

KW - Interfacially disorder

KW - Nanoparticle

UR - http://www.scopus.com/inward/record.url?scp=33644814349&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33644814349&partnerID=8YFLogxK

U2 - 10.2320/matertrans.47.38

DO - 10.2320/matertrans.47.38

M3 - Article

AN - SCOPUS:33644814349

SN - 1345-9678

VL - 47

SP - 38

EP - 42

JO - Materials Transactions

JF - Materials Transactions

IS - 1

ER -

Coercivity control of FePt nanoparticles by interfacial disorder

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this