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Abstract Copper phosphorus sulphide halides of the above composition were synthesized from the elements and CuHal at 700° C. The isomorphic compounds are cubic, space group F43m. Crystals in the form… (More)
Abstract The TbCrO 4 zircon-like compound was investigated by X-ray and neutron diffraction experiments in the 4.2–300 K temperature range. It first undergoes a second order phase transition at about… (More)
Abstract The structure of the compound Cu 4 NiSi 2 S 7 has been determined. It crystallizes in a new, monoclinic distorted sphalerite superlattice with the parameters: a = 11.551 A , b = 5.313 A , c… (More)
L'Institut fur Luft- und Kaltetechnik de Dresde, a mis au point des methodes de calcul de la reponse thermique des locaux, qui utilisent a la fois des calculateurs analogiques et digitaux. Les… (More)