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Crystallochemical and optical study of mixed alkaline earth-samarium fluorohalides of the lead fluorine chloride type

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Published in Materials Research Bulletin. 1995, vol. 30, no. 4, p. 405-412
Abstract Single crystals X-ray diffraction was performed on five crystals with nominal compositions Sr1/2Sm1/2FCl, Sr1/2Ca1/2FCl, Sr2/3Ba1/3FCl1/3Br2/3, Sr1/2Sm1/2FCl1/2Br1/2 and Sr0.6Sm0.1Ca 0.3FCl. Population refinements confirm the presence of correlations between lattice constants and composition. A new correlation between the heavy halogen z value and the unit cell volume is found. Luminescence spectra of bivalent samarium in these crystals contribute to the structural characterization of these compounds.
Keywords Alkaline earthsLanthanideFluorohalidesLuminescent materials
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Research group Groupe Bill
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KUBEL, Frank, HAGEMANN, Hans-Rudolf, BILL, Hans. Crystallochemical and optical study of mixed alkaline earth-samarium fluorohalides of the lead fluorine chloride type. In: Materials Research Bulletin, 1995, vol. 30, n° 4, p. 405-412. https://archive-ouverte.unige.ch/unige:2984

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Deposited on : 2009-09-21

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