DOI: 10.1063/1.1467976. Exchange-coupled FePt nanoparticle assembly

Exchange-coupled FePt nanoparticle assembly

10.1063/1.1467976

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

We have produced exchange-coupled FePt nanoparticle assemblies by chemical synthesis and subsequent thermal annealing. As the interparticle distances decrease by tuning the annealing conditions, interparticle interactions change from dipolar type to exchange type, and the magnetization reversal mechanism switches from rotation controlled to domain-nucleation controlled. With increasing annealing temperature, the coercivity first increases due to improved chemical ordering, and then drops significantly, resulting from excessive interparticle exchange coupling. For the samples exhibiting exchange coupling, both the remanence ratio and coercive squareness increase.

Bibliography

Zeng, H., Sun, S., Vedantam, T. S., Liu, J. P., Dai, Z.-R., & Wang, Z.-L. (2002). Exchange-coupled FePt nanoparticle assembly. Applied Physics Letters, 80(14), 2583â2585.

Authors 6

Hao Zeng (first)
Shouheng Sun (additional)
T. S. Vedantam (additional)
J. P. Liu (additional)
Z.-R. Dai (additional)
Z.-L. Wang (additional)

References 17 Referenced 164

{'key': '2024020322012891300_r1'}
10.1016/0304-8853(89)90333-8 / J. Magn. Magn. Mater. (1989)
10.1103/PhysRevB.48.15812 / Phys. Rev. B (1993)
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{'key': '2024020322012891300_r12'}
{'key': '2024020322012891300_r13', 'first-page': '251', 'volume': '33', 'year': '1986', 'journal-title': 'Phys. Rev. B'} / Phys. Rev. B (1986)
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{'key': '2024020322012891300_r16'}
{'key': '2024020322012891300_r17'}

Dates

Type	When
Created	23 years ago (July 26, 2002, 10:18 a.m.)
Deposited	1 year, 6 months ago (Feb. 3, 2024, 5:01 p.m.)
Indexed	4 months ago (April 21, 2025, 12:25 a.m.)
Issued	23 years, 4 months ago (April 8, 2002)
Published	23 years, 4 months ago (April 8, 2002)
Published Print	23 years, 4 months ago (April 8, 2002)

Funders 0

None

BibTeX

@article{Zeng_2002, title={Exchange-coupled FePt nanoparticle assembly}, volume={80}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.1467976}, DOI={10.1063/1.1467976}, number={14}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Zeng, Hao and Sun, Shouheng and Vedantam, T. S. and Liu, J. P. and Dai, Z.-R. and Wang, Z.-L.}, year={2002}, month=apr, pages={2583–2585} }

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