Strong perpendicular magnetic anisotropy of Fe-Pd nanocrystalline particles enhanced by Co addition

Kovács, András; Sato, Kazuhisa; Hirotsu, Yoshihiko

Journal of Applied Physics, 2007, 101(3), 033910

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Identifier to cite or link to this item: https://hdl.handle.net/11094/89399

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Title
Strong perpendicular magnetic anisotropy of Fe-Pd nanocrystalline particles enhanced by Co addition
Creator
CreatorName
Kovács, András
NRID
1000070314424 1000070314424
ORCID
0000-0001-9078-2541 0000-0001-9078-2541
researchmap permalink
read0158304 read0158304
Scopus Author ID
55552977400 55552977400
CreatorName
Sato, Kazuhisa
NRID
1000070016525 1000070016525
CreatorName
Hirotsu, Yoshihiko
Description
András Kovács, Kazuhisa Sato, and Yoshihiko Hirotsu, "Strong perpendicular magnetic anisotropy of Fe–Pd nanocrystalline particles enhanced by Co addition", Journal of Applied Physics 101, 033910 (2007) https://doi.org/10.1063/1.2434958.
Abstract
L1₀ -PdCoFe nanoparticles were prepared by vapor deposition of the components and characterized by transmission electron microscopy and by superconducting quantum interference device magnetometry. Co addition to the Fe-Pd nanocrystals resulted in a strong perpendicular magnetic anisotropy and a reduction in the formation temperature of the ordered L1₀ phase. Formation of the ordered phase was studied by in situ annealing of specimens inside the transmission electron microscope. L1₀ phase formation started at 698 K, as evidenced by the appearance of 110 superlattice reflections in electron diffraction patterns. Co additions enhanced the magnetic easy axis alignment perpendicular to the film plane. The perpendicular maximum coercivity at room temperature was 1.75 kOe for L1₀ -PdCoFe nanoparticles with an average size of 8 nm, and the magnetic coercivity decreased by increasing the Co concentration in the L1₀ nanoparticles. © 2007 American Institute of Physics.
Publisher
American Institute of Physics
Source Title
Journal of Applied Physics
Volume (Issue)
101(3)
Page
033910
Date of Issued
2007-02-01
Language
English
Handle URL
https://hdl.handle.net/11094/89399
PISSN
00218979
NCID
AA00693547
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1063/1.2434958
Access Rights
open access
CopyRight
This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in András Kovács, Kazuhisa Sato, and Yoshihiko Hirotsu, "Strong perpendicular magnetic anisotropy of Fe–Pd nanocrystalline particles enhanced by Co addition", Journal of Applied Physics 101, 033910 (2007) and may be found at https://doi.org/10.1063/1.2434958.
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Version of Record
Category
学術雑誌論文 Journal Article