Hydrogen impact on magnetic properties of metallic systems

A brief overview of the impact of presence of hydrogen in metallic systems on magnetic properties is given. Respective differences between the 4f, 5f, and 3d system are emphasized using examples of materials with similar crystal structure. The analysis is based on general aspects of H bonding in metallic environment, H expanding volume and polar bonding of H. Electronegativity is used as a convenient indicator quantifying the polar bonding character. (c) 2021 Elsevier B.V. All rights reserved.

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This paper provides a brief overview of the impact of hydrogen presence in metallic systems on magnetic properties, emphasizing the differences between different systems and using materials with similar crystal structures for comparison. The analysis is based on general aspects of hydrogen bonding in a metallic environment, hydrogen expanding volume, and polar bonding of hydrogen. Electronegativity is used as a convenient indicator quantifying the polar bonding character.