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Magnetic properties of new intermetallics FeVSn and CoVSn are reported. Both materials belong to the group of semi-Heusler compounds, with lattice parameters of 0.593 and 0.598 nm respectively in a cubic MgAgAs structure. X-ray investigations indicate partial atomic ordering in both cases. Ferromagnetic order was observed in FeVSn with Tc =86 K. The saturation moment obtained by M versus H measurements at 4 K has a value of 0.45 Gig, indicating that FeVSn is a weak itinerant ferromagnet. CoVSn was found to be paramagnetic with no magnetic ordering down to 2 K. Room-temperature 51V NMR spectra were used as a local probe of the magnetic behavior of these materials. The results Indicate that V d orbitals play a strong role in the magnetism of FeVSn. Results for CoVSn are consistent with predicted semiconducting or semimetallic behavior for this material
Published in:
Magnetics, IEEE Transactions on
(Volume:37
,
Issue:
4
)
Date of Publication: Jul 2001
- Page(s):
- 2138 - 2140
- ISSN :
- 0018-9464
- INSPEC Accession Number:
- 7065503
- Digital Object Identifier :
- 10.1109/20.951101
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 07 August 2002
- Issue Date :
- Jul 2001
- Sponsored by :
- IEEE Magnetics Society
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