L10 phase formation in FePd thin films induced by H2 during annealing

Shamis, M. N.; Schmidt, N. Y.; Verbytska, T. I.; Makushko, Pavlo; Beddies, G.; Albrecht, Manfred; Makogon, Yu. N.

doi:10.1007/s13204-021-01809-4

Cited by 8 publications

(1 citation statement)

References 39 publications

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“…Here, the material properties can be improved by using an appropriate annealing atmosphere like hydrogen (see, e.g., Ref. [18] and references therein).…”

Section: Introductionmentioning

confidence: 99%

Atomic Migration and Ordering of Binary Ferromagnetic Intermetallic L1₀Phases and Influences of Alloying Elements and Electric Fields

2023

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The ordered body‐centered tetragonal intermetallic phase of FeNi is a promising candidate for high‐performance permanent magnets without rare‐earth elements. However, on earth FeNi is found naturally only in the disordered face‐centered‐cubic A1 phase. Herein, the atomic migration and ordering processes in binary intermetallic phases are investigated within the framework of density‐functional theory. The main objectives are 1) to develop a thorough understanding of the thermally activated diffusion processes at the atomic scale and 2) to make a critical assessment in how far electric field and current effects can be effective means for an enhanced hardening‐by‐ordering of disordered, soft‐ferromagnetic alloys. The scope is extended from FeNi to the hard‐ferromagnetic phases of FePt, FePd, MnAl, and MnGa as well as ternary Fe(Pt,Ni) alloys. These materials cover a wide range of thermal‐ordering time scales and related experimental feasibility.

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“…Here, the material properties can be improved by using an appropriate annealing atmosphere like hydrogen (see, e.g., Ref. [18] and references therein).…”

Section: Introductionmentioning

confidence: 99%

Atomic Migration and Ordering of Binary Ferromagnetic Intermetallic L1₀Phases and Influences of Alloying Elements and Electric Fields

2023

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Features of Ordered Nanostructure Formation in Ultrathin FePd Films Annealed in Hydrogen

Levchuk,

Shkarban,

Kotenko

et al. 2024

Springer Proceedings in Physics

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Relating the magnetic coercivity to the L10 ordered FePd phase in annealed FexPd100-x nanoparticles

et al. 2022

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Rare-earth-free or iron-based permanent nanomagnets are emerging as promising candidates for energy-conversion and information technologies. In this interest, FexPd100-x nanoparticles (x = 50, 55, 60, and 63) were prepared from iron acetate and palladium acetate by sonoelectrodeposition. After annealing the nanoparticles at various temperatures from 450 to 700 °C for 1 h, structural changes were observed, and the samples exhibit hard magnetic properties that depend strongly on chemical composition and annealing temperature. The major phase in the as-prepared nanoparticles has a disordered face-centered cubic structure, which, upon annealing, transforms into a multi-phase material containing a L10 ordered FePd phase. The fractions of different phases present in the annealed samples, including that of the L10 phase as functions of chemical composition and annealing temperature, are quantified by means of X-ray diffraction and scanning transmission electron microscopy. Magnetic measurements show the desirable hard magnetic properties for the samples annealed at 550–600 °C. A correlation between the magnetic coercivity and the L10 ordered FePd phase fraction is established for the first time in the FexPd100-x nanoparticles.

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L10 phase formation in FePd thin films induced by H2 during annealing

Cited by 8 publications

References 39 publications

Atomic Migration and Ordering of Binary Ferromagnetic Intermetallic L1₀Phases and Influences of Alloying Elements and Electric Fields

Atomic Migration and Ordering of Binary Ferromagnetic Intermetallic L1₀Phases and Influences of Alloying Elements and Electric Fields

Features of Ordered Nanostructure Formation in Ultrathin FePd Films Annealed in Hydrogen

Relating the magnetic coercivity to the L10 ordered FePd phase in annealed FexPd100-x nanoparticles

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L10 phase formation in FePd thin films induced by H2 during annealing

Cited by 8 publications

References 39 publications

Atomic Migration and Ordering of Binary Ferromagnetic Intermetallic L10Phases and Influences of Alloying Elements and Electric Fields

Atomic Migration and Ordering of Binary Ferromagnetic Intermetallic L10Phases and Influences of Alloying Elements and Electric Fields

Features of Ordered Nanostructure Formation in Ultrathin FePd Films Annealed in Hydrogen

Relating the magnetic coercivity to the L10 ordered FePd phase in annealed FexPd100-x nanoparticles

Contact Info

Product

Resources

About

Atomic Migration and Ordering of Binary Ferromagnetic Intermetallic L1₀Phases and Influences of Alloying Elements and Electric Fields

Atomic Migration and Ordering of Binary Ferromagnetic Intermetallic L1₀Phases and Influences of Alloying Elements and Electric Fields