Fermi Surface for the3dBand of Chromium

The Fermi surface for the $3d$ band in chromium has been deduced from previously calculated $E\left(\mathrm{k}\right)$ curves, which were obtained in the tight-binding approximation. It turns out that the filled electronic states occupy the regions around the $\Gamma$ point and the $\Delta$ and $F$ lines of the Brillouin zone.