Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1620464 | Journal of Alloys and Compounds | 2010 | 6 Pages |
Abstract
We investigated the influence of B variation on the structural, thermal, and electronic properties of the ternary intermetallics Al3Ni20Bx (x=6,7,â¦,12). On increasing the metalloid content, the cubic unit-cell parameter (space group Fm3¯m) is observed to increase linearly. Down to 2 K (for selected cases down to 120 mK), no evidence of superconductivity or (de)localized magnetism is observed in any of the studied samples; rather, all exhibit a nonmagnetic and metallic character. Furthermore, the Pauli susceptibilities, the coefficients of the specific heats, and the coefficients of the resistivities are found to correlate strongly (but non-montonically) with the percentage of the Ni content per unit formula (the Ni 3d band is the dominant contributor to the density of states N(EF)). Such a non-monotonic evolution of the electronic properties is attributed to a corresponding non-monotonic character of the N(E) curve within the neighborhood of EF.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
M. Elhadi, M. ElMassalami, H. Takeya, R.E. Rapp, F.A.B. Chaves, A. Elzubair,