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- W3011608595 abstract "By performing comprehensive first-principles calculations, we study the hard magnetic properties of ${mathrm{Ce}}_{2}$${mathrm{Co}}_{17}$ and ${mathrm{Ce}}_{2}$${mathrm{Fe}}_{17}$ under $mathrm{Zr}$ doping with varying $mathrm{Co}$ concentrations, given the substantial experimental success of $mathrm{Zr}$ in improving the magnetic anisotropy energy (MAE) in ${mathrm{Ce}}_{2}$${mathrm{Co}}_{17}$ and ${mathrm{Sm}}_{2}$${mathrm{Co}}_{17}$. We find that the magnetic properties of these alloys become comparable to state-of-the-art magnetic materials by doping with two elements, $mathrm{Zr}$ and $mathrm{Fe}$, with potential-energy products $B{H}_{max}$ of 40 MG Oe. The $mathrm{Zr}$ substitution is particularly helpful for improving the MAE, leading to a magnetic hardness parameter ${K}_{1}/{ensuremath{mu}}_{0}{M}_{s}^{2}$ that significantly exceeds unity for a substantial range of $mathrm{Co}$ concentrations (between 60% and 100% of the $3d$-element concentration). The calculated MAE exhibits a strong dependence on the $mathrm{Co}$ concentration, indicative of a likely valence fluctuation with $mathrm{Co}$ alloying, and shows a maximum value of 7.78 ${mathrm{MJ}/mathrm{m}}^{3}$ for 60% $mathrm{Co}$ doping. Thus, upon experimental verification, these alloys may become competitors to the better-known permanent-magnet materials ${mathrm{Nd}}_{2}$${mathrm{Fe}}_{14}$$mathrm{B}$ and ${mathrm{Sm}mathrm{Co}}_{5}$." @default.
- W3011608595 created "2020-03-23" @default.
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- W3011608595 title "Potential High-Performance Magnet: <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline overflow=scroll><mml:mi>Fe</mml:mi></mml:math> - and <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline overflow=scroll><mml:mi>Zr</mml:mi></mml:math> -Alloyed <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline overflow=scroll><mml:msub><mml:mi>Ce</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:math> <mml:math xmlns:mml=http://www.w3.org/…" @default.
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- W3011608595 doi "https://doi.org/10.1103/physrevapplied.13.034039" @default.
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