Energy Bands in Ferromagnetic Nickel
- 1 January 1972
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 5 (1), 124-134
- https://doi.org/10.1103/physrevb.5.124
Abstract
The tight-binding method has been employed to calculate energy bands in ferromagnetic nickel. The basis set consisted of atomic wave functions for the , , , , , , and states, expressed as linear combinations of Gaussian orbitals, and five individual Gaussian orbitals for each state. The Coulomb part of the crystal potential was constructed from a superposition of overlapping neutral-atom charge densities, the atoms being in the configuration. The method of Slater et al. was used to construct an exchange potential. Energy levels were calculated at 1505 points in of the Brillouin zone. The results are generally in good agreement with those obtained from other first-principles calculations. The properties for several positions on the Fermi surface are determined and compared with experiment. The spin splitting of the bands is calculated to be about 0.8 eV. A spin-wave reciprocal effective mass of 0.165 (in atomic units) is obtained.
Keywords
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