Thermodynamics and Magnetism of YCo5 Compound Doped with Fe and Ni: An Ab Initio Study
Source abstract
Abstract
YCo5 permanent magnet exhibits high uniaxial magnetocrystalline anisotropy energy and has a high Curie temperature. These are good properties for a permanent magnet, but YCo5 has a low energy product, which is notably insufficient for a permanent magnet. In order to improve the energy product in YCo5, we suggest replacing cobalt with iron, which has a much bigger magnetic moment. With a combination of density-functional-theory calculations and thermodynamic CALculation of PHAse Diagrams (CALPHAD) modeling, we show that a new magnet, YFe3(Ni1-xCox)2, is thermodynamically stable and exhibits an improved energy product without significant detrimental effects on the magnetocrystalline anisotropy energy or the Curie temperature.
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Research context
OpenAlex topics: Magnetic Properties of Alloys · Magnetic and transport properties of perovskites and related materials · Hydrogen Storage and Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Lawrence Livermore National Laboratory, Livermore, CA 94551-0808, USA
Funding
Lawrence Livermore National Laboratory
References (100+)
Show source-provided references
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