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we used almost stoichiometric molar composition of Nd3BWO9 constituents 3:1.1:1.1(Nd2O3:B2O3:WO3). The concentration of neodymium borotungstate in PbO was equal to 15mol%. Crystallization was carried out in a platinum crucible covered with a lid. The soaking temperature was 1100¡æ,After the solidification of the melt the furnace was cooled down to room temperature at a rate of 20¡æ/h,
and then Nd3BWO9 crystals were extracted from the crucible by means of etching in hot alkaline solution.

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