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Browse Journals & Magazines > Journal of Applied Physics ...> Volume:70 Issue:10 Help

Effect of nitrogen on the structural and magnetic properties of intermetallic compounds with the ThMn12 structure

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2 Author(s)
Wang, Y.Z. ; Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716 ; Hadjipanayis, G.C.

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The effects of nitrogen uptake on the structural and magnetic properties of RFe12-xTx alloys have been studied. Several interstitial nitrides with composition RFe12-xTxNy (R=Nd and Sm and T=Ti and V) were prepared by heat treating fine powders of RFe12-xTx alloys in N2 gas. Preliminary results show the following observations: (1) The ThMn12 structure of the original compounds is retained with the addition of nitrogen but with increased lattice constants (a and c). (2) The Curie temperature is greatly enhanced by about 150–175 K. (3) The character of magnetic anisotropy is changed from ‘‘weak uniaxial’’ type to ‘‘strong uniaxial’’ type for NdFe12-xTxNy and from ‘‘uniaxial’’ to ‘‘planar’’ for SmFe12-xTxNy.

Published in:
Journal of Applied Physics  (Volume:70 ,  Issue: 10 )

Date of Publication: Nov 1991

Page(s):
6009 - 6011
ISSN :
0021-8979
Digital Object Identifier :
10.1063/1.350076
Product Type:
Journals & Magazines
Date of Current Version :
07 July 2009
Issue Date :
Nov 1991

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