Electronic structure and Fermi surface of the weak ferromagnet Ni3Al
Abstract
We report a positron annihilation study of the electronic structure of both the paramagnetic and ferromagnetic phases of the weak ferromagnet Ni3Al. A tomographic technique was used to reconstruct the full three-dimensional electron momentum density for both phases, from which Fermi surface topologies were extracted. Comparison with ab initio calculations finds good agreement between experiment and theory and emphasizes the importance of the inclusion of spin-orbit coupling in the correct description of the electronic structure of this alloy.
- Publication:
-
Physical Review B
- Pub Date:
- December 2011
- DOI:
- 10.1103/PhysRevB.84.235107
- Bibcode:
- 2011PhRvB..84w5107H
- Keywords:
-
- 74.70.Ad;
- 74.25.Jb;
- 71.18.+y;
- 78.70.Bj;
- Metals;
- alloys and binary compounds;
- Electronic structure;
- Fermi surface: calculations and measurements;
- effective mass g factor;
- Positron annihilation