Magnetism of new semi-Heusler compounds FeVSn and CoVSn

• Published in: IEEE transactions on magnetics Vol. 37; no. 4; pp. 2138 - 2140
• Main Authors: Lue, C.S., Oner, Y., Naugle, D.G., Ross, J.H.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY IEEE 01-07-2001; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Atomic measurements; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Exact sciences and technology; Extraterrestrial measurements; Fe and its alloys; Ferromagnetism; Intermetallic; Lattice parameters; Lattices; Magnetic materials; Magnetic properties; Magnetic properties and materials; Magnetic semiconductors; Magnetism; Metals. Metallurgy; Order disorder; Paramagnetic materials; Physics; Saturation; Saturation magnetization; Semiconductor materials; Spectra; Studies of specific magnetic materials; X-rays; Intermetallic compounds; Vanadium alloys; Ternary alloys; Iron alloys; XRD; Experimental study; Lattice parameters; Tin alloys; NMR; Heusler alloys; Ferromagnetism; Cobalt alloys; Saturation magnetization; Magnetic properties
• ISSN: 0018-9464; 1941-0069
• DOI: 10.1109/20.951101

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 T/sub c/=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 /sup 51/V 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.