Application of FePt nanoparticle superlattices to nanomagnetic devices

Toshiharu Teranishi; Masafumi Nakaya; Masayuki Kanehara

Application of FePt nanoparticle superlattices to nanomagnetic devices

Toshiharu Teranishi, Masafumi Nakaya, Masayuki Kanehara

Division of Process and System Engineering

Research output: Contribution to conference › Paper › peer-review

Abstract

Chemically synthesized FePt nanoparticles have many attractive features, such as their ease of synthesis, narrow size distribution, chemical stability, and potential applications in high-density data storage. The novel solveutless synthesis of FePt nanoparticles larger than 5 nm with controlled composition has been developed by using iron acctylacetonate in place of iron pentacarbonyl as an iron precursor, where the conventional solvent was not used at all. The obtained large FePt nanoparticles (6.1 ± 0.6 nm Fe₃₆Pt ₅₄, 5.8 ± 0.7 nm Fe₄₄Pt₅₆, and 5.1. ± 0.7 nm Fe₄₉Pt₅₁ nanoparticles) in 2D assembly were found to be thermally more stable than the small nanoparticles.

Original language	English
Pages	4793-4794
Number of pages	2
Publication status	Published - 2005 Dec 1
Event	54th SPSJ Symposium on Macromolecules - Yamagata, Japan Duration: 2005 Sep 20 → 2005 Sep 22

Other

Other	54th SPSJ Symposium on Macromolecules
Country	Japan
City	Yamagata
Period	05/9/20 → 05/9/22

Keywords

FePt nanoparticle
Magnetic property
Solventless synthesis
Superlattice
Ultra high density magnetic recording

ASJC Scopus subject areas

Engineering(all)

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title = "Application of FePt nanoparticle superlattices to nanomagnetic devices",

abstract = "Chemically synthesized FePt nanoparticles have many attractive features, such as their ease of synthesis, narrow size distribution, chemical stability, and potential applications in high-density data storage. The novel solveutless synthesis of FePt nanoparticles larger than 5 nm with controlled composition has been developed by using iron acctylacetonate in place of iron pentacarbonyl as an iron precursor, where the conventional solvent was not used at all. The obtained large FePt nanoparticles (6.1 ± 0.6 nm Fe36Pt 54, 5.8 ± 0.7 nm Fe44Pt56, and 5.1. ± 0.7 nm Fe49Pt51 nanoparticles) in 2D assembly were found to be thermally more stable than the small nanoparticles.",

keywords = "FePt nanoparticle, Magnetic property, Solventless synthesis, Superlattice, Ultra high density magnetic recording",

author = "Toshiharu Teranishi and Masafumi Nakaya and Masayuki Kanehara",

year = "2005",

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note = "54th SPSJ Symposium on Macromolecules ; Conference date: 20-09-2005 Through 22-09-2005",

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T1 - Application of FePt nanoparticle superlattices to nanomagnetic devices

AU - Teranishi, Toshiharu

AU - Nakaya, Masafumi

AU - Kanehara, Masayuki

PY - 2005/12/1

Y1 - 2005/12/1

N2 - Chemically synthesized FePt nanoparticles have many attractive features, such as their ease of synthesis, narrow size distribution, chemical stability, and potential applications in high-density data storage. The novel solveutless synthesis of FePt nanoparticles larger than 5 nm with controlled composition has been developed by using iron acctylacetonate in place of iron pentacarbonyl as an iron precursor, where the conventional solvent was not used at all. The obtained large FePt nanoparticles (6.1 ± 0.6 nm Fe36Pt 54, 5.8 ± 0.7 nm Fe44Pt56, and 5.1. ± 0.7 nm Fe49Pt51 nanoparticles) in 2D assembly were found to be thermally more stable than the small nanoparticles.

AB - Chemically synthesized FePt nanoparticles have many attractive features, such as their ease of synthesis, narrow size distribution, chemical stability, and potential applications in high-density data storage. The novel solveutless synthesis of FePt nanoparticles larger than 5 nm with controlled composition has been developed by using iron acctylacetonate in place of iron pentacarbonyl as an iron precursor, where the conventional solvent was not used at all. The obtained large FePt nanoparticles (6.1 ± 0.6 nm Fe36Pt 54, 5.8 ± 0.7 nm Fe44Pt56, and 5.1. ± 0.7 nm Fe49Pt51 nanoparticles) in 2D assembly were found to be thermally more stable than the small nanoparticles.

KW - FePt nanoparticle

KW - Magnetic property

KW - Solventless synthesis

KW - Superlattice

KW - Ultra high density magnetic recording

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