Energy bands of (100) iron thin films
- 15 October 1975
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 12 (8) , 2932-2942
- https://doi.org/10.1103/physrevb.12.2932
Abstract
We have performed a tight-binding calculation of the energy bands of a 41-layer ferromagnetic (100) iron thin film. The 23-matrix element parameters (for each spin) were obtained by fitting Tawil and Callaway's bulk band calculation at a large number of points. The diagonal matrix element parameters for the surface layers were then shifted by a constant amount to make the surface charge neutral. The energy bands were calculated at 256 points in the two-dimensional Brillouin zone (BZ) and the planar and total densities of states calculated. A detailed discussion of the surface states and resonances throughout the two-dimensional BZ is given.Keywords
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