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The precise electronic structure of CaF 2 has been determined using X-ray data and maximum entropy method (MEM). The two-dimensional and one-dimensional analysis of the electron densities on different planes and directions have been carried out. The mid-bond density along [111] direction is found to be 0.69e/Å 3 at a distance of 1.33Å from the Ca atom situated at the origin. The bonding...
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