Structural and magnetic model of self-assembled FePt nanoparticle arrays

T. Thomson; M. F. Toney; S. Raoux; S. L. Lee; S. Sun; C. B. Murray; B. D. Terris

doi:10.1063/1.1759393

Structural and magnetic model of self-assembled FePt nanoparticle arrays

T. Thomson, M. F. Toney, S. Raoux, S. L. Lee, S. Sun, C. B. Murray, B. D. Terris

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

Abstract

X-ray diffraction, small angle neutron scattering, and magnetometry were used to investigate chemically ordered, self-assembled FePt nanoparticle arrays with high magnetic anisotropy. Thin assemblies of polyethylenimine (PEI) and 4 nm Fe 58Pt 42 nanoparticles were analyzed. A metallic magnetic core surrounded by a weakly magnetic or nonmagnetic shell resulted from annealing FePt nanoparticles in the PEI-FePt assembly. The L1 0 chemical ordering and FePt nanoparticles having high coercivity were derived from high temperature annealing.

Original language	English
Pages (from-to)	1197-1201
Number of pages	4
Journal	Journal of Applied Physics
Volume	96
Issue number	2
DOIs	https://doi.org/10.1063/1.1759393
Publication status	Published - 15 Jul 2004

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title = "Structural and magnetic model of self-assembled FePt nanoparticle arrays",

abstract = "X-ray diffraction, small angle neutron scattering, and magnetometry were used to investigate chemically ordered, self-assembled FePt nanoparticle arrays with high magnetic anisotropy. Thin assemblies of polyethylenimine (PEI) and 4 nm Fe 58Pt 42 nanoparticles were analyzed. A metallic magnetic core surrounded by a weakly magnetic or nonmagnetic shell resulted from annealing FePt nanoparticles in the PEI-FePt assembly. The L1 0 chemical ordering and FePt nanoparticles having high coercivity were derived from high temperature annealing.",

author = "T. Thomson and Toney, {M. F.} and S. Raoux and Lee, {S. L.} and S. Sun and Murray, {C. B.} and Terris, {B. D.}",

note = "Thomson, T Toney, MF Raoux, S Lee, SL Sun, S Murray, CB Terris, BD",

year = "2004",

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doi = "10.1063/1.1759393",

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T1 - Structural and magnetic model of self-assembled FePt nanoparticle arrays

AU - Thomson, T.

AU - Toney, M. F.

AU - Raoux, S.

AU - Lee, S. L.

AU - Sun, S.

AU - Murray, C. B.

AU - Terris, B. D.

N1 - Thomson, T Toney, MF Raoux, S Lee, SL Sun, S Murray, CB Terris, BD

PY - 2004/7/15

Y1 - 2004/7/15

N2 - X-ray diffraction, small angle neutron scattering, and magnetometry were used to investigate chemically ordered, self-assembled FePt nanoparticle arrays with high magnetic anisotropy. Thin assemblies of polyethylenimine (PEI) and 4 nm Fe 58Pt 42 nanoparticles were analyzed. A metallic magnetic core surrounded by a weakly magnetic or nonmagnetic shell resulted from annealing FePt nanoparticles in the PEI-FePt assembly. The L1 0 chemical ordering and FePt nanoparticles having high coercivity were derived from high temperature annealing.

AB - X-ray diffraction, small angle neutron scattering, and magnetometry were used to investigate chemically ordered, self-assembled FePt nanoparticle arrays with high magnetic anisotropy. Thin assemblies of polyethylenimine (PEI) and 4 nm Fe 58Pt 42 nanoparticles were analyzed. A metallic magnetic core surrounded by a weakly magnetic or nonmagnetic shell resulted from annealing FePt nanoparticles in the PEI-FePt assembly. The L1 0 chemical ordering and FePt nanoparticles having high coercivity were derived from high temperature annealing.

U2 - 10.1063/1.1759393

DO - 10.1063/1.1759393

M3 - Article

SN - 1089-7550

VL - 96

SP - 1197

EP - 1201

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 2

ER -

Structural and magnetic model of self-assembled FePt nanoparticle arrays

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