Morphological change in FePt nanogranular films induced by irradiation with 100 keV He ions

Syo Matsumura, T. Horiuchi, Kazuhiro Yasuda, Kenji Kaneko, M. Watanabe, T. Masumoto

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We have investigated the effects of He-ion irradiation on structures of FePt nanoparticles dispersed in thin films with amorphous Al2O 3 matrix. The coarsening of FePt nanoparticles is suppressed under irradiation with 100 keV He+ ions at an elevated temperature, such as 923 K. The delay of particle growth is also recognized in the post-irradiation annealing. On the other hand, He-irradiation is of little assistance in promoting L10 ordering in the nanogranular films at a temperature as low as 573 K.

Original languageEnglish
Pages (from-to)441-445
Number of pages5
JournalScripta Materialia
Volume53
Issue number4
DOIs
Publication statusPublished - Aug 1 2005

Fingerprint

Irradiation
Ions
irradiation
Nanoparticles
nanoparticles
ions
Coarsening
Ion bombardment
ion irradiation
Annealing
Thin films
Temperature
annealing
temperature
matrices
thin films

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

Cite this

Morphological change in FePt nanogranular films induced by irradiation with 100 keV He ions. / Matsumura, Syo; Horiuchi, T.; Yasuda, Kazuhiro; Kaneko, Kenji; Watanabe, M.; Masumoto, T.

In: Scripta Materialia, Vol. 53, No. 4, 01.08.2005, p. 441-445.

Research output: Contribution to journalArticle

@article{c2872254d3544911a004e595e64ff071,
title = "Morphological change in FePt nanogranular films induced by irradiation with 100 keV He ions",
abstract = "We have investigated the effects of He-ion irradiation on structures of FePt nanoparticles dispersed in thin films with amorphous Al2O 3 matrix. The coarsening of FePt nanoparticles is suppressed under irradiation with 100 keV He+ ions at an elevated temperature, such as 923 K. The delay of particle growth is also recognized in the post-irradiation annealing. On the other hand, He-irradiation is of little assistance in promoting L10 ordering in the nanogranular films at a temperature as low as 573 K.",
author = "Syo Matsumura and T. Horiuchi and Kazuhiro Yasuda and Kenji Kaneko and M. Watanabe and T. Masumoto",
year = "2005",
month = "8",
day = "1",
doi = "10.1016/j.scriptamat.2005.04.044",
language = "English",
volume = "53",
pages = "441--445",
journal = "Scripta Materialia",
issn = "1359-6462",
publisher = "Elsevier Limited",
number = "4",

}

TY - JOUR

T1 - Morphological change in FePt nanogranular films induced by irradiation with 100 keV He ions

AU - Matsumura, Syo

AU - Horiuchi, T.

AU - Yasuda, Kazuhiro

AU - Kaneko, Kenji

AU - Watanabe, M.

AU - Masumoto, T.

PY - 2005/8/1

Y1 - 2005/8/1

N2 - We have investigated the effects of He-ion irradiation on structures of FePt nanoparticles dispersed in thin films with amorphous Al2O 3 matrix. The coarsening of FePt nanoparticles is suppressed under irradiation with 100 keV He+ ions at an elevated temperature, such as 923 K. The delay of particle growth is also recognized in the post-irradiation annealing. On the other hand, He-irradiation is of little assistance in promoting L10 ordering in the nanogranular films at a temperature as low as 573 K.

AB - We have investigated the effects of He-ion irradiation on structures of FePt nanoparticles dispersed in thin films with amorphous Al2O 3 matrix. The coarsening of FePt nanoparticles is suppressed under irradiation with 100 keV He+ ions at an elevated temperature, such as 923 K. The delay of particle growth is also recognized in the post-irradiation annealing. On the other hand, He-irradiation is of little assistance in promoting L10 ordering in the nanogranular films at a temperature as low as 573 K.

UR - http://www.scopus.com/inward/record.url?scp=19944420461&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=19944420461&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2005.04.044

DO - 10.1016/j.scriptamat.2005.04.044

M3 - Article

AN - SCOPUS:19944420461

VL - 53

SP - 441

EP - 445

JO - Scripta Materialia

JF - Scripta Materialia

SN - 1359-6462

IS - 4

ER -