Crystal growth and characterization of the non-centrosymmetric compound Tl3PbCl5

Exploratory growth in the Li2MoO4-MoO3 system for the next crystal generation of heat-scintillation cryogenic bolometers

“…The melting onset temperature was determined to be Tm = (975.0 ± 1.0) K, and the melting enthalpy and entropy amount to ΔHm = (49.66 ± 1.99) kJ/mol and ΔSm = (6.13 ± 0.25) R, respectively. The melting entropy proves to be lower than that found in KPb2Cl5 [22], in Tl3PbBr5 [23], in Tl3PbBr5 [24], in PbFe3O(PO4)3 [25], in Li6Eu(BO3)3 [26] and in Ba2LaFeNb4O15 [27]. All the latter crystal examples were grown with large facets.…”

Segregation and Twinning in the Rare-Earth Doped KPb2Cl5 Laser Crystals

“…Condon et al have found random growth directions of the Er:KPC single crystals from one growth run to the other, 26 and our X-ray diffraction experiments led to similar results in these crystals as well as in those of Tl 3 PbCl 5 , where the crystals facets turned out to change upon regrowing them in strictly identical conditions. 27 These observations, which reflect the threedimensional nature of the chemical bonding and the relatively high density in these systems, demonstrate that the growth habit is not unique. Somewhat surprisingly, this occurs under conditions which are not so far from equilibrium.…”

Growth and characterization of pure and Pr3+-doped Cs4PbBr6 crystals

“…[17], except that the scanning rate in the visible absorption measurements was 60 nm/s. All the spectroscopic measurements were performed on a 2-mm-thick Cs 4 PbBr 6 single crystal and a 1.…”