Additive effects of AlN and MgO on FePt nanoparticle assembly

Satoshi Okamoto; Osamu Kitakami; Yutaka Shimada

doi:10.2320/matertrans.47.43

Additive effects of AlN and MgO on FePt nanoparticle assembly

Satoshi Okamoto, Osamu Kitakami, Yutaka Shimada

Division of Inorganic Material Research

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

4 Citations (Scopus)

Abstract

We have studied the additive effects of AlN and MgO on L1₀-FePt nanoparticles by co-sputtering FePt and AlN (or MgO) on MgO(100) substrates at 973 K. Good epitaxial growth of FePt was confirmed both for AlN and MgO. With the increase of the additive content, the long range order (LRO) of L1 ₀ phase appeared to increase for AlN, whereas it was suppressed for MgO. Morphological observation by addition of AlN, well-isolated FePt particles became to connect each other, and finally formed a maze-like structure. On the other hand, the morphology of FePt particles was hardly affected by addition of MgO.

Original language	English
Pages (from-to)	43-46
Number of pages	4
Journal	Materials Transactions
Volume	47
Issue number	1
DOIs	https://doi.org/10.2320/matertrans.47.43
Publication status	Published - 2006 Jan

Keywords

AlN
FePt
Magnetic recording
MgO
Nanoparticle

ASJC Scopus subject areas

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

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T1 - Additive effects of AlN and MgO on FePt nanoparticle assembly

AU - Okamoto, Satoshi

AU - Kitakami, Osamu

AU - Shimada, Yutaka

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N2 - We have studied the additive effects of AlN and MgO on L10-FePt nanoparticles by co-sputtering FePt and AlN (or MgO) on MgO(100) substrates at 973 K. Good epitaxial growth of FePt was confirmed both for AlN and MgO. With the increase of the additive content, the long range order (LRO) of L1 0 phase appeared to increase for AlN, whereas it was suppressed for MgO. Morphological observation by addition of AlN, well-isolated FePt particles became to connect each other, and finally formed a maze-like structure. On the other hand, the morphology of FePt particles was hardly affected by addition of MgO.

AB - We have studied the additive effects of AlN and MgO on L10-FePt nanoparticles by co-sputtering FePt and AlN (or MgO) on MgO(100) substrates at 973 K. Good epitaxial growth of FePt was confirmed both for AlN and MgO. With the increase of the additive content, the long range order (LRO) of L1 0 phase appeared to increase for AlN, whereas it was suppressed for MgO. Morphological observation by addition of AlN, well-isolated FePt particles became to connect each other, and finally formed a maze-like structure. On the other hand, the morphology of FePt particles was hardly affected by addition of MgO.

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Additive effects of AlN and MgO on FePt nanoparticle assembly

Abstract

Keywords

ASJC Scopus subject areas

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