Abstract
The influence of grain boundaries on the magnetic properties of nanocrystalline nickel, in particular the Σ = 3 and Σ = 5 special grain boundaries and the extreme case of a purely amorphous sample, has been investigated. Our calculations reveal that the magnetic moment is rather insensitive to the structural disorder varying by at most 15 %. These results correlate extremely well with the recent observation in electrodeposited nickel that the magnetic moment depends very little on grain size, down to about 10 nm.
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Acknowledgments
The authors wish to acknowledge financial support from the Natural Sciences and Engineering Research Council of Canada, the Ontario Centre for Materials Research, and the “Fonds pour la formation de chercheurs et l’aide à la recherche” of the Province of Québec.
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Szpunar, B., Erb, U., Aust, K.T. et al. The Influence of Grain-Boundary Structural Disorder on the Magnetic Properties of Nanocrystalline Nickel. MRS Online Proceedings Library 318, 477–482 (1993). https://doi.org/10.1557/PROC-318-477
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DOI: https://doi.org/10.1557/PROC-318-477