NMR properties of 51V in a complex high-temperature phase of Fe2VSi

NMR properties of V-51 in the high-temperature phase of Fe2VSi with the alpha-Mn-type structure (A12) are reported. A free-decay signal with a temperature-independent shift and broad-spin echo signal with a temperature-dependent shift and hyperfine-coupling constant of -3.3 kOe/mu(B) have been observed. Both come from nonmagnetic vanadium sites, and paramagnetic moment of 1.6 mu(B)/f.u. and is suggested to be due to magnetic iron atoms. (c) 2006 Elsevier B.V. All rights reserved.