Magnetic anisotropies and magnetization reversal properties of the epitaxial Heusler compound Co2Cr0.6Fe0.4Al deposited on Fe and Cr buffer layers are studied. Both samples exhibit a growth-induced fourfold anisotropy, and magnetization reversal occurs through the formation of stripy domains or 90 degrees domains. During rotational magnetometric scans the sample deposited on Cr exhibits about 2 degrees sharp peaks in the angular dependence of the coercive field, which are oriented along the hard axis directions. These peaks are a consequence of the specific domain structure appearing in this particular measurement geometry. A corresponding feature in the sample deposited on Fe is not observed. (c) 2006 American Institute of Physics.