TITLE

Structure and magnetic properties of bulk nanocrystalline Dy metal prepared by spark plasma sintering

AUTHOR(S)
Yue, M.; Wang, K. J.; Liu, W. Q.; Zhang, D. T.; Zhang, J. X.
PUB. DATE
November 2008
SOURCE
Applied Physics Letters;11/17/2008, Vol. 93 Issue 20, p202501
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The structure and magnetic properties were studied for bulk nanocrystalline dysprosium (Dy) metal prepared by spark plasma sintering method. All the as-prepared samples have hexagonal close packed structure. A decrease in grain size results in remarkable changes in magnetic ordering temperature of the nanocrystalline Dy metal. At 5 K, the magnetization drops by 3.35%, and the coercive force increases by three times for nanocrystalline Dy compared to those of coarse-grained bulk Dy sample. These results indicate the remarkable influence of the nanostructure on the magnetism of Dy due to finite size effect.
ACCESSION #
35514141

 

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