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Description:

The coercive force (field) of Neodymium (Nd) magnets (Nd₂Fe₁₄B) is often enhanced by adding dysprosium (Dy), particularly at high temperatures. To better understand the magnetic properties of Dy-substituted systems and the underlying mechanisms of coercivity enhancement, it is essential to investigate both the thermodynamic properties and dynamic behavior of (Nd₁₋ₓDyₓ)₂Fe₁₄B from a microscopic perspective. To this end, we have recently developed an atomistic modeling approach. Using atomistic models with microscopic parameters estimated from first-principles calculations, we carried out a detailed investigation of the thermodynamic properties and dynamical features of (Nd₁₋ₓDyₓ)₂Fe₁₄B.

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Keyword: atomistic model, neodymium magnets, dysprosium-substituted magnets, coercive force, thermodynamic properties, dynamics

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Conference: The 28th International Workshop on Rare Earth and Future Permanent Magnets and Their Applications (REPM2025) (2025-07-27 - 2025-07-31)

Funding:

• MEXT Scientific Research B (No. 24 K01332)

Manuscript type: Not a journal article

MDR DOI: https://doi.org/10.48505/nims.5788

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Updated at: 2025-10-01 16:30:20 +0900

Published on MDR: 2025-10-01 16:23:26 +0900