Abstract
We use maximum entropy to deconvolute the experimental resolution from (projected) 2DACAR (two-dimensional angular correlation of electron-positron annihilation radiation) data for Cr, Mo, V and their alloys. When the original data are subtracted from the deconvoluted data, the difference distribution reveals far more Fermi surface information. It is found that the difference plot may also be used to calliper the N-hole pockets of the projected Fermi surface. The dimensions that we obtain for pure Cr and Mo agree well with those from the literature, although those we obtain for V are smaller. The technique is designed to permit the callipering of the N-hole pocket in certain alloys for eventual comparison with work on oscillatory exchange coupling in magnetic multilayers.
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