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Electronic structure and magnetism of Y-M (M=Mn, Fe, Co and Ni) compounds

✍ Scribed by J. Inoue

Publisher
Elsevier Science
Year
1988
Weight
966 KB
Volume
149
Category
Article
ISSN
0378-4363

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✦ Synopsis

Various magnetic properties observed in Y-M (M=Mn, Fe, Co and Ni) and Y2Ma4 B (M=Fe and Co) intermetallic compounds are reviewed from a viewpoint of the itinerant electron model. The characteristics of the electronic density of states calculated for these compounds are summarised. It is shown that the general trend of the magnetism of these compounds can be explained in terms of the calculated results of the density of states. The calculated values of the low-temperature specific heat coefficient and the local magnetic moments show good agreement with the experimental ones, which confirms the validity of the explanation of their magnetism in terms of the itinerant electron model. Explanations are given for the large magnetovolume effect in Fe-rich Y-Fe compounds, the metamagnetism of Y2Ni16, the thermal spontaneous ferromagnetism of Y2Ni 7 and the weak ferromagnetism of Y9C07.

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